I'm getting a Slash on Thursday and I'm going to get a MM/VXL set-up for it for christmas. I'm going the Jato spur gear conversion so with the MM/VXL what pinion should I run with an Ener-G 4600 6 cell. I don't need super speed over 35 would be fine till I go Li-Po. The 32P pinions range from 9 to 22T.