I've got a DEX210 (my first entry into the buggy world) and would like some battery advice. I haven't had the chance to get it to the track yet but I've been messing around at home with my 5000/40c packs that I use for my 4wd SCT. I'm wondering if I should get something a little smaller to cut back on the weight of the battery? Would saddle packs be better? Wish GensAce made shorties