
RLSH May week 2 RTP delta — Buffalo King Megaways (Pragmatic) advances 0.21pp, Tombstone R.I.P. (Nolimit City) regresses 0.18pp, both inside ±0.5% bench tolerance. Sample window May 5 close, 11,200 + 9,800 spin pools.
RLSH closes the May week 2 RTP delta read on two movers. Buffalo King Megaways (Pragmatic Play) advances 0.21pp on the rolling 11,200-spin pool. Tombstone R.I.P. (Nolimit City) regresses 0.18pp on the rolling 9,800-spin pool. Both movements fall inside the bench's ±0.5% weekly tolerance, which is the registry's threshold for "noise vs signal" classification.
Open RLSH's weekly RTP delta registry
| Slot | Provider | Provider RTP | Last week observed | This week observed | Delta | Pool size |
|---|---|---|---|---|---|---|
| Buffalo King Megaways | Pragmatic Play | 96.52% | 96.18% | 96.39% | +0.21pp | 11,200 spins |
| Tombstone R.I.P. | Nolimit City | 96.08% | 96.04% | 95.86% | −0.18pp | 9,800 spins |
The 0.21pp advance on Buffalo King Megaways is driven primarily by a tighter free-spin trigger interval in the rolling pool. The bench's p50 trigger interval moved from 198 spins in week 1 to 174 spins in week 2 — that compression delivers the observed RTP lift without any change to the underlying multiplier distribution. The herd-multiplier sticky feature held the same right-skewed shape across both windows; the lift is trigger-frequency-driven, not multiplier-magnitude-driven.
The −0.18pp regression on Tombstone R.I.P. is a tail-event effect. The week 1 pool included two 240×+ free-spin exits that pulled the observed RTP up to 96.04%. Week 2 had no equivalent tail outcomes — the highest free-spin exit logged was 162×. The base-game distribution was nearly identical across both weeks; the regression sits entirely in the tail. This is exactly the variance shape the bench tracks weekly: high-volatility titles will drift above and below the provider RTP in 1,000–2,000-spin windows even when the underlying RNG is behaving correctly.
RLSH classifies any weekly delta inside ±0.5pp as registry noise — meaningful to track but not actionable for session sizing. Deltas outside ±0.5pp on a single weekly window prompt an extended-bench audit at 24,000+ spins to confirm whether the delta reflects RNG drift, configuration change at the operator, or sample-window variance. Both Buffalo King Megaways and Tombstone R.I.P. stay inside the ±0.5pp band this week — neither title triggers an extended-bench audit.
Track RLSH's weekly RTP audit registry
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