c07e6d9599
56/60 opponent-level win deltas are non-negative and no opponent family regresses reproducibly (the one WallAvoider loss reverses in Batch 2). corr(dwins, d_hit_rate) = -0.09, corr(dwins, d_damage) = +0.38: the aggregate win is a survival effect, but a per-opponent hit-rate gain does not predict a per-opponent win gain - so hit rate stays an explanation, never a proxy.