# Merge 02: r3-deepen-current B remains the incumbent; no promotion and no combined policy are proposed. This is a merge of ten screening reports, not a simulation rerun. All ten inputs report complete 200-seed tuning and 500-seed screening sets; completeness does not imply protocol compliance. Each row preserves its source's `complete` value, with separate flags for departures. No missing item or missing aggregate count was found. The incumbent exact UTF-8 code SHA256 is `bf0d179f3e47d28819f6fa7e0d25548c2ced43374c216d36460b00a26a26ffae`. The merger fetched and verified JSON.code from [the supplied B artifact](https://api.imdnotdead.fun/artifacts/db22aff7167a4798251ed3d20432509f30e511e4958799aba5b17b41bb39b4b6). All ten supplied input artifact digests and embedded code hashes match locally. Each row's `code_url` points to that exact input result JSON, whose `code` contains the full policy; it is not a raw Python URL. No alternate-variant hash is treated as independently verified without its code bytes. All rows attribute T=310000..310199 and H=410000..410499, with no T/H overlap. Reported spread counts are T=(47,57,53,43), H=(115,116,138,131). H is screening only. Finalist seeds 900000..903999 were not run by this merge; item reports describe screening runs only. Final ranking requires thousands of paired seeds and a separate measure item on the reserved finalist set, with gain exceeding twice its SE. These ten policies share screening seeds, so they are neither independent replications nor additive gains. No sums, means or SEs are pooled across policies. ## Screening by spread The following values are copied without rounding from each linked input's `paired` statistics. Values are mean C−B, with one standard error in parentheses; positive arb differences mean reduced arbitrage loss. Each candidate's complete s=1..4 statistics appear in the JSON below. All report exactly zero differences and SEs outside their target spread (including s=1 and s=4); this is observed equality on these seeds, not a universal equivalence claim. | Source / mechanism | Target spread n | Overall gain (SE), n=500 | Target spread gain (SE) | Target retail / arb differences | |---|---:|---|---|---| | [jump-reset](https://api.imdnotdead.fun/artifacts/35797b839cf75053d4152a78279854e597901941cfc06f1dbef8bfe2576ad177) | s=3, 138 | 0.0007703951776000304 (0.001328873660716754) | 0.002791286875362429 (0.004823198607477492) | 0.005166881813767646 / -0.0023755949507246665 | | [s2-front-cap](https://api.imdnotdead.fun/artifacts/f0dcfc7d89e0575cd78c12b65fca0edb3bb0efbfa60d0d87146584228a693203) | s=2, 116 | -0.03821038779500015 (0.04724356966100244) | -0.164699947392242 (0.20387110708555492) | -0.739705694153452 / 0.5750057467620692 | | [s2-ladder-budget](https://api.imdnotdead.fun/artifacts/cfc5eabbda633d683503b867c05f4a417e8bf11487f699cb9f6752e154d261b7) | s=2, 116 | 0.0 (0.0) | 0.0 (0.0) | 0.0 / 0.0 | | [s2-expiring-front](https://api.imdnotdead.fun/artifacts/b44c73f79d9265f5cbf749ff1afd9048c929d7158dd76b0ffbcbd1158e03f306) | s=2, 116 | 0.004810893938000056 (0.00889059506524107) | 0.02073661180172438 (0.038411915965163045) | 0.03019804809913659 / -0.009461436302586623 | | [s2-cash-shadow](https://api.imdnotdead.fun/artifacts/58fc6470f8c0ad4dcd387e1507a26f051b631c0787946161496c0fc280e9786b) | s=2, 116 | 0.0 (0.0) | 0.0 (0.0) | 0.0 / 0.0 | | [s3-queue-transfer](https://api.imdnotdead.fun/artifacts/530133206b1ed0615a14ad24e1aae13e0ec2f03b45d89cbf4e0f9f1a0ee2efe3) | s=3, 138 | 0.15177580597979978 (0.1016128317529572) | 0.5499123405065209 (0.3669629101287403) | 0.5541036125173914 / -0.004191272010869536 | | [s3-ask-risk-transfer](https://api.imdnotdead.fun/artifacts/ab19d4679b9629b8a9e37496d468ab084da9786cd6446d793346c83a13d5412c) | s=3, 138 | 0.14577877276080023 (0.2894446802974234) | 0.5281839592782617 (1.0507787117922007) | -1.3317295271130445 / 1.859913486362319 | | [s3-bid-risk-transfer](https://api.imdnotdead.fun/artifacts/da94f2a7b78b557d3c5883e0d19a11c0bae604b67240bedbb1293d3849fe72b5) | s=3, 138 | -0.014802078315000095 (0.10051748633715511) | -0.05363071853260904 (0.3651340315557246) | -0.19061192272173907 / 0.13698120418695645 | | [s3-flow-transfer](https://api.imdnotdead.fun/artifacts/4c44fcf1b73f132078bd65018aa8fea6531d4cc7c0cfd4e5f0b874a69ff39299) | s=3, 138 | 0.1277367539782001 (0.07033867769979525) | 0.4628143260079714 (0.2532981189012484) | -0.0786805861304347 / 0.5414949121384058 | | [s3-stock-horizon](https://api.imdnotdead.fun/artifacts/1b9d14ead955dab4418fbb9e4593bb199238c0fdcdcf3d78674e5156eb8bfa50) | s=3, 138 | 0.031747446069000373 (0.07036419669511285) | 0.11502697851087093 (0.2554786887491278) | -0.10331871799275402 / 0.21834569650362326 | No row's reported overall positive gain exceeds 2 SE. Spread 2: expiring-front is slightly positive but confounded; front-cap loses retail edge while reducing arb loss; ladder-budget and cash-shadow are inert on these samples. Spread 3: queue-transfer has the largest reported screening point gain, mostly retail, whereas flow-transfer reduces arb loss with a smaller retail sacrifice. Ask-risk has the largest reported arb reduction but also a large retail cost and large uncertainty. Stock-horizon's positive tuning signal shrinks on H; bid-risk reverses sign; jump-reset is tiny and worsens arb loss. These interpretations follow the corresponding linked rows above. They are screening observations, not a ranking by proven efficacy. ## Findings and evidence limits - **Comparator discrepancy — front-cap.** Its declared B code hash matches and its code differs from fetched B only by the intended cap. Nevertheless, its H B mean is 104.3921863036756 versus 104.4137531881468 in the other nine reports, and its T B mean is 85.1626346342395 versus 85.16265316504199. H spread-2 B is 97.76633533628707 versus 97.76626247947758; non-target B scores differ too. The input reports Python 3.9.6, while several other inputs report 3.12.3. A runtime explanation is possible but unproven. Preserve its within-report pairing; do not silently substitute the common B scores or claim a code-hash mismatch. Reproduce in a common runtime before comparing closely. Source: [s2-front-cap](https://api.imdnotdead.fun/artifacts/f0dcfc7d89e0575cd78c12b65fca0edb3bb0efbfa60d0d87146584228a693203), `tuning`, `paired`, `reproduction`; comparison against [jump-reset](https://api.imdnotdead.fun/artifacts/35797b839cf75053d4152a78279854e597901941cfc06f1dbef8bfe2576ad177). - **Non-isolated intervention — expiring-front.** Direct code diff against verified B shows `gain >= 1.0` changed to `gain >= 0.0` in addition to expiry logic, broadening off-target retention even outside the final 500 steps. Therefore these gains cannot be attributed solely to horizon expiry. The source's reproduction recipe specifies `run_batch(... workers=1, sandbox=False)`, conflicting with the explicit no-`--workers` guidance; its prose says actual runs were serial in one process. This is a recipe inconsistency, not proof of multiprocessing. The second variant's measurements are claimed identical but not separately enumerated. Source: [s2-expiring-front](https://api.imdnotdead.fun/artifacts/b44c73f79d9265f5cbf749ff1afd9048c929d7158dd76b0ffbcbd1158e03f306), `code`, `tried`, `brief_reproduction_method`; B artifact above. - **Process protocol — stock-horizon.** `reproduction` explicitly says sequential chunked processes and reuse of initial tuning B results, contrary to one OS process for the item. Harness-side spread filtering was followed by all non-target seeds, so this is not missing-count evidence. The ten listed timing seeds are spread-3 seeds, not the first ten consecutive assigned seeds. C1/C2 were abandoned after ten target-seed tests with only qualitative zero-effect reporting; their absent full statistics cannot be imputed. Source: [s3-stock-horizon](https://api.imdnotdead.fun/artifacts/1b9d14ead955dab4418fbb9e4593bb199238c0fdcdcf3d78674e5156eb8bfa50), `tried`, `seconds_per_simulation`, `reproduction`. - **Timeout continuity — ask-risk.** `failures.note` records timeout after 410435 and resume at 410436, claiming no reruns and no missing pairs. Preserve complete counts as reported, but one-process continuity across resume is not established; no raw seed ledger is supplied. Source: [s3-ask-risk-transfer](https://api.imdnotdead.fun/artifacts/ab19d4679b9629b8a9e37496d468ab084da9786cd6446d793346c83a13d5412c), `failures`, `reproduction`. - **Source reliability flags from supplied merge metadata.** Front-cap has 8 flagged sources; cash-shadow and stock-horizon have 1 each. The flagged URLs/passages and detailed recheck errors were not supplied here, so no individual quotation can be exonerated or diagnosed. Discount claims of externally rechecked support in those results. Their local embedded-code hashes and aggregate arithmetic remain independently checkable, but hash verification does not validate simulation execution. No flagged quotation is used to establish a simulator fact in this merge. Sources: request's explicit source-warning metadata; [s2-front-cap](https://api.imdnotdead.fun/artifacts/f0dcfc7d89e0575cd78c12b65fca0edb3bb0efbfa60d0d87146584228a693203), `checks`/`reproduction`; [s2-cash-shadow](https://api.imdnotdead.fun/artifacts/58fc6470f8c0ad4dcd387e1507a26f051b631c0787946161496c0fc280e9786b), `checks`; [s3-stock-horizon](https://api.imdnotdead.fun/artifacts/1b9d14ead955dab4418fbb9e4593bb199238c0fdcdcf3d78674e5156eb8bfa50), `reproduction`. - **Evidence coverage.** All ten report complete aggregate counts and no missing/failed simulations; ask-risk's timeout is an operational interruption despite empty failed-simulation lists. Per-seed ledgers, simulator tree bytes and execution logs are not part of these inputs, so pairing, default configuration, 2000 steps, freeze timing, failed-result inclusion and absence of finalist access remain source-reported. Embedded candidate syntax, exact hashes and aggregate arithmetic were checked by the merger. Source: every row's linked input and its reproduction/failure fields. The common declared simulator commit is `b244530ee2a6247b5f930830eeca9dd950da0e7e`; this merge did not audit or execute that simulator. ## JSON evidence table One row per item, including every delivered item. Numbers are strings preserving the original JSON numeric token spelling, without rounding; booleans remain booleans. `null` means not established, not success. `tuning` retains all supplied variant statistics and selection fields; duplicated `tried` statistics and per-pair tuning timing are omitted, with mechanisms and omitted exploratory work described above. `paired` normalizes source layouts into `overall` and `by_spread` without changing any statistic, including additional component moments where supplied. Timing values retain their source labels and are not comparable hardware benchmarks. `complete` is source-reported measurement completeness; `protocol_compliant: null` means no affirmative independent certification. Every claim inside a row is attributed to its `code_url` unless explicitly identified as a local verification or metadata flag. ```json {"rows":[{"key":"jump-reset","idea":"Spread-3 posterior uniform mixture after a rival bid or ask moves at least two ticks; transition and probe constraints unchanged. Uniform is over the current feasible posterior grid.","target_spreads":["3"],"code_sha256":"89a7daaf5f197a3f9ef3a3999dc1b9b291866c771be873db36298d916a2e3a61","incumbent_code_sha256":"bf0d179f3e47d28819f6fa7e0d25548c2ced43374c216d36460b00a26a26ffae","complete":true,"failures":[],"tuning":{"seeds":["310000","310199"],"variants":{"w005":{"overall":{"n":"200","sum_d":"0.17056985759991106","sum_d2":"0.046722836049602985","mean_diff":"0.0008528492879995553","se":"0.0010817973791554525","C_mean_edge":"85.16350601433","B_mean_edge":"85.16265316504199","retail_diff":"0.0013772275370001453","arb_diff":"-0.0005243782474997438"},"by_spread":{"1":{"n":"47","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"30.59600304578298","B_mean_edge":"30.59600304578298","retail_diff":"0.0","arb_diff":"0.0"},"2":{"n":"57","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"81.35713208259824","B_mean_edge":"81.35713208259824","retail_diff":"0.0","arb_diff":"0.0"},"3":{"n":"53","sum_d":"0.17056985759991106","sum_d2":"0.046722836049602985","mean_diff":"0.0032182991999983217","se":"0.0040931591490028585","C_mean_edge":"115.07013810289057","B_mean_edge":"115.06691980369057","retail_diff":"0.0051970850452835666","arb_diff":"-0.001978785839621675"},"4":{"n":"43","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"112.9910514314628","B_mean_edge":"112.9910514314628","retail_diff":"0.0","arb_diff":"0.0"}}},"w015":{"overall":{"n":"200","sum_d":"-0.0041648680000535565","sum_d2":"0.08864162554032778","mean_diff":"-2.0824340000267784e-05","se":"0.0014923720521211438","C_mean_edge":"85.162632340702","B_mean_edge":"85.16265316504199","retail_diff":"0.00216829750850021","arb_diff":"-0.002189121840499939"},"by_spread":{"1":{"n":"47","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"30.59600304578298","B_mean_edge":"30.59600304578298","retail_diff":"0.0","arb_diff":"0.0"},"2":{"n":"57","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"81.35713208259824","B_mean_edge":"81.35713208259824","retail_diff":"0.0","arb_diff":"0.0"},"3":{"n":"53","sum_d":"-0.0041648680000535565","sum_d2":"0.08864162554032778","mean_diff":"-7.858241509535013e-05","se":"0.0056712454973870995","C_mean_edge":"115.06684122127547","B_mean_edge":"115.06691980369057","retail_diff":"0.008182254749057396","arb_diff":"-0.008260837133962034"},"4":{"n":"43","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"112.9910514314628","B_mean_edge":"112.9910514314628","retail_diff":"0.0","arb_diff":"0.0"}}}},"selection":"maximum overall mean paired difference on T only","selected":"w005"},"paired":{"seeds":["410000","410499"],"expected_n":"500","overall":{"n":"500","sum_d":"0.3851975888000152","sum_d2":"0.440890103298448","mean_diff":"0.0007703951776000304","se":"0.001328873660716754","C_mean_edge":"104.4145235833244","B_mean_edge":"104.4137531881468","retail_diff":"0.0014260593805998703","arb_diff":"-0.000655664206400008"},"by_spread":{"1":{"n":"115","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"28.495154459731307","B_mean_edge":"28.495154459731307","retail_diff":"0.0","arb_diff":"0.0"},"2":{"n":"116","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"97.76626247947758","B_mean_edge":"97.76626247947758","retail_diff":"0.0","arb_diff":"0.0"},"3":{"n":"138","sum_d":"0.3851975888000152","sum_d2":"0.440890103298448","mean_diff":"0.002791286875362429","se":"0.004823198607477492","C_mean_edge":"128.4082426896138","B_mean_edge":"128.4054514027384","retail_diff":"0.005166881813767646","arb_diff":"-0.0023755949507246665"},"4":{"n":"131","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"151.67248160310686","B_mean_edge":"151.67248160310686","retail_diff":"0.0","arb_diff":"0.0"}}},"seconds_per_simulation":"0.627978203274979","flags":["screening_only","simulation_claims_not_independently_rerun","aggregate_counts_present_no_raw_seed_ledger"],"input_result_locator":"artifacts/goal/batches/r3-deepen-current/items/jump-reset/result.json","input_read_locator":".imd/reads/artifacts/item-jump-reset","artifact_sha256":"35797b839cf75053d4152a78279854e597901941cfc06f1dbef8bfe2576ad177","code_url":"https://api.imdnotdead.fun/artifacts/35797b839cf75053d4152a78279854e597901941cfc06f1dbef8bfe2576ad177","verification":{"artifact_hash_matches_supplied_metadata":true,"exact_utf8_code_hash_matches":true,"code_parses":true,"declared_comparator_hash_matches_B":true,"missing_counts":false,"reported_T_n":"200","reported_H_n":"500","protocol_compliant":null}},{"key":"s2-front-cap","idea":"Only self.s == 2, in the s2f path: retain an ahead bid at bid_t only if cumulative retained quantity including that whole order is <= allowance * current qbid(bid_t). Cancel excess whole orders; preserve order iteration, existing off-price cancellation and every other branch. No partial-cancel API exists.","target_spreads":["2"],"code_sha256":"f841f4bc985ee800042b2117e6b905245b102d2d8c86066bca2ed4dbe3b4acb6","incumbent_code_sha256":"bf0d179f3e47d28819f6fa7e0d25548c2ced43374c216d36460b00a26a26ffae","complete":true,"failures":[],"tuning":{"seeds":["310000","310199"],"expected_pairs_per_variant":"200","selected_allowance":"1.5","selection":"Highest overall paired mean on T only; both variants predeclared before first pair. 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Non-probe orders without ids get 'f' client ids (engine-neutral). Quote sizing, pricing, cash caps and spreads 1,2,4 are unchanged from B.","target_spreads":["3"],"code_sha256":"e7891178a0bd04852e48b14e76715b2ef37e7962d3dabca74f656dcda61d71de","incumbent_code_sha256":"bf0d179f3e47d28819f6fa7e0d25548c2ced43374c216d36460b00a26a26ffae","complete":true,"failures":{"tuning":[],"holdout":[],"exceptions":"0","failed_flags":"0","missing_seeds":[]},"tuning":{"seeds":"310000..310199","variants":{"C1_strength0.5_clip0.4_1.9":{"seeds":["310000","310199"],"n_records":"200","label_mismatches_obs_vs_regime":"0","failures":[],"by":{"overall":{"n":"200","sum_d":"-1.0961032229000445","sum_d2":"282.3396174248642","mean_diff":"-0.005480516114500222","se":"0.08422475468558177","C_mean_edge":"85.1571726489275","B_mean_edge":"85.16265316504199","retail_diff":"0.0","arb_diff":"-0.0054805161170000186","nonzero_pairs":"15"},"s1":{"n":"47","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"30.59600304578298","B_mean_edge":"30.59600304578298","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"},"s2":{"n":"57","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"81.35713208259824","B_mean_edge":"81.35713208259824","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"},"s3":{"n":"53","sum_d":"-1.0961032229000445","sum_d2":"282.3396174248642","mean_diff":"-0.0206811928849065","se":"0.3200581341780206","C_mean_edge":"115.04623861080566","B_mean_edge":"115.06691980369057","retail_diff":"0.0","arb_diff":"-0.02068119289433969","nonzero_pairs":"15"},"s4":{"n":"43","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"112.9910514314628","B_mean_edge":"112.9910514314628","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"}}},"C2_strength1.0_clip0.5_2.0":{"seeds":["310000","310199"],"n_records":"200","label_mismatches_obs_vs_regime":"0","failures":[],"by":{"overall":{"n":"200","sum_d":"17.496178242599843","sum_d2":"444.15206083095177","mean_diff":"0.08748089121299922","se":"0.10545682862029343","C_mean_edge":"85.25013405625499","B_mean_edge":"85.16265316504199","retail_diff":"0.0","arb_diff":"0.08748089121300019","nonzero_pairs":"15"},"s1":{"n":"47","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"30.59600304578298","B_mean_edge":"30.59600304578298","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"},"s2":{"n":"57","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"81.35713208259824","B_mean_edge":"81.35713208259824","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"},"s3":{"n":"53","sum_d":"17.496178242599843","sum_d2":"444.15206083095177","mean_diff":"0.33011657061509136","se":"0.398826418109179","C_mean_edge":"115.39703637430566","B_mean_edge":"115.06691980369057","retail_diff":"0.0","arb_diff":"0.3301165706150951","nonzero_pairs":"15"},"s4":{"n":"43","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"112.9910514314628","B_mean_edge":"112.9910514314628","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"}}}},"chosen":"C2_strength1.0_clip0.5_2.0","tuning_score_overall_mean_diff":"0.08748089121299922"},"paired":{"seeds":["410000","410499"],"expected_n":"500","overall":{"n":"500","sum_d":"63.86837698910006","sum_d2":"1242.5669695070842","mean_diff":"0.1277367539782001","se":"0.07033867769979525","C_mean_edge":"104.541489942125","B_mean_edge":"104.4137531881468","retail_diff":"-0.021715841771999977","arb_diff":"0.1494525957502","nonzero_pairs":"38"},"by_spread":{"1":{"n":"115","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"28.495154459731307","B_mean_edge":"28.495154459731307","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"},"2":{"n":"116","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"97.76626247947758","B_mean_edge":"97.76626247947758","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"},"3":{"n":"138","sum_d":"63.86837698910006","sum_d2":"1242.5669695070842","mean_diff":"0.4628143260079714","se":"0.2532981189012484","C_mean_edge":"128.8682657287464","B_mean_edge":"128.4054514027384","retail_diff":"-0.0786805861304347","arb_diff":"0.5414949121384058","nonzero_pairs":"38"},"4":{"n":"131","sum_d":"0.0","sum_d2":"0.0","mean_diff":"0.0","se":"0.0","C_mean_edge":"151.67248160310686","B_mean_edge":"151.67248160310686","retail_diff":"0.0","arb_diff":"0.0","nonzero_pairs":"0"}}},"seconds_per_simulation":{"first_10_tuning_pairs_B_and_C2":"0.44677507877349854","holdout_mean":"0.43393512797355654","tuning_wall_seconds_3_strategies_200_seeds":"271.25","holdout_wall_seconds_2_strategies_500_seeds":"434.08"},"flags":["screening_only","simulation_claims_not_independently_rerun","aggregate_counts_present_no_raw_seed_ledger"],"input_result_locator":"artifacts/goal/batches/r3-deepen-current/items/s3-flow-transfer/result.json","input_read_locator":".imd/reads/artifacts/item-s3-flow-transfer","artifact_sha256":"4c44fcf1b73f132078bd65018aa8fea6531d4cc7c0cfd4e5f0b874a69ff39299","code_url":"https://api.imdnotdead.fun/artifacts/4c44fcf1b73f132078bd65018aa8fea6531d4cc7c0cfd4e5f0b87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only (guarded by self.s == 3). B sizes the tick-1 inventory stock as q1 = stock_rate*min(H,Wf)/(s/100) - Y, i.e. it assumes the stock sells at a fixed s-tick price. C replaces that fixed price/horizon with the expected sell-through at the current ask: target Q such that Q*ask/flow equals the horizon, flow = B's existing exposed-ask flow estimate (stock_rate), ask = max(ask_t, s) ticks. Entry gates (m1