You could easily smoke one following thier rules.

12 cells, any of their motors, on a heavy e-maxx = smoke. Gearing will be a mojor factor in how long it takes to smoke. Trust me. Out of at least 15 esc's I have smoked, only 1 of them was out of spec. But ya, Castle is by far the best...but wrong application will end its life early. If you are gunna try it, try it with a castle....its the most likely to survive.