early: early-1 -> final: attempts 120, with checkpoint 114 (unsafe 0); mean pre 0.465 final 0.541; change +0.077 [+0.029, +0.133]; up 37 down 4 same 73
stop:  final-1 -> final: attempts 120, with checkpoint 120 (unsafe 0); mean pre 0.520 final 0.531; change +0.011 [-0.018, +0.041]; up 9 down 5 same 106
