[suicideneil]

I know griffinRU has success with stacking powerboards on the MM esc to double the amp handling, but stacking the actual FETs them selves could be somewhat more difficult. I believe it depends on the layout of the powerboard, but ideally you would use 2 identical units and stack one atop the other, then solder on the brain board using extended buss-bars, and then the power & motor wires so that they bridge the sandwich as it were. Novak do tend to over-rate their stuff though- the Hvmaxx is rated at 400amps (which would make it the best esc ever almost), but in reality it is only good for 75amps due to the FETS used and case design....