[E-Revonut]

Upgrade your charger to the duo! The 18Amp Ofna PS will charge 2 3s packs at 5A without a problem. I would stick with a 4s setup with the 1y though, otherwise you'll just be gearing way down to keep it manageable. So get yourself another pair of 2s packs. I have heard the Mip cvds aren't all there cracked up to be. Generally speaking the stock shafts hold up well and are cheap to replace(generally find 4 packs on ebay for about $25 shipped). If you want to spend all your money the hybrid diffs are supposed to be awesome, have you blown your stock diffs yet though? $250 in diffs is hard to swallow! I can buy a lot of stock replacements for that much and mine have held up fine so far.