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STAGE 2 STRESS TEST · 2-1-2 MANHATTAN VS FLAT BETTING
2-1-2 Manhattan Progression vs. Flat 1-Unit Baseline — Four-Shoe Alternating Sawtooth under 5% Banker Commission (288-Hand Stress Test)
When 4-Shoe Chop (chop) injects a 3-hand extreme run and 27 tie pushes (9.38% Tie density) over 288 coups, variance-scaled audit S281-0 computes 2-1-2 Manhattan Progression at 4.96u expected erosion (22.84% ruin) compared with 3.17u (9.92% ruin) for Flat 1-Unit Baseline on 160 units. Because every 8-deck coup is statistically independent under 5% Banker Commission (0.95:1) (1.0579% edge), progression rules alter drawdown speed and table-cap collisions without changing per-hand expectation.
- 2-1-2 Manhattan Ruin Rate
- 22.84%
- Flat Betting Ruin Rate
- 9.92%
- Peak Trough (3-Run)
- -18u
- 4-Shoe Chop House Edge
- 1.0579%