Hey JRH. I just ordered a Mamba max. I assume it will be a new one. The new ones have less fets? Are they of better quality or do the new ESC's have lower voltage tolerances? I am going to find out about the mods Griffinru does when I get home from school. I would like the ability to run 5 or 6s lipos on it. Well be home around 3.30, darn school