I think there were some MAJOR kernel changes by zinx to fix the battery issue, so I think your probably experiencing a placebo effect
sorry no placebo ova here buddy, still getting my same 4.1 linpack, SINCE I INSTALLED TEST2 AT 50% 3 hours ago, ive been surfing and making calles and im only down to 39% at i write this, so go figure, o yea stock battery since i bout my g1 about a year and some change ago