Actually, I find lipos much easier to deal with than Nimh batteries, so when I go to the track, I run mine using a Flightmax 1300mah 2S lipo and a BEC at 5V.

Incidentally, when I switched to lipo I was beginning to notice that, with the power off, my React would drain fully charged nimh packs in a little over a week. It could be that my nimh packs are nearing the end of their lives, nonetheless, has anyone else had this experience? I know ESCs suck power even when turned off, but didn't think radios did. (As a matter of policy, I never leave lipos plugged in when not in use.)