hmmmm, well, if you want a good battery that is better than maxcramps but not as good as polyquest, this one is DIRT cheap
http://hobbycity.com/hobbycity/store..._15C_Lipo_Pack
it is mislabeled as a 15c, but it is a 20c-30c battery. it is a relabeled zippy flightmax 20c. it has the same cells, but bigger output leads. i have the zippy flightmax 25c 5000mah 3s packs and they don't break a sweat in my rustler or my bl savage.
They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.