success-only filtered copy of g1-inspire-piston-longhorizon67/107 episodes kept (dropped failed: [1, 8, 15, 32, 44, 45, 46, 47, 48, 51, 52, 56, 57, 58, 59, 61, 63, 64, 66, 67, 68, 70, 71, 76, 77, 78, 79, 80, 81, 83, 84, 85, 91, 94, 97, 98, 99, 100, 102, 103]); re-indexed contiguously; numeric stats recomputed.
