I have sent my 60A to get fixed by GriffinRU (Same guy who started the Mamba Max MOD and the R1Pro MOD) and he is very impreesed by the 60A ESC. With his MOD he said they can handle 100A with no problem. The problem I had with the 60A was my mistake. I was using a Mega ACn16/15/1 (6 pole 9200Kv) and being a 6 pole motor it like higher timing, but I made a mistake and changed the timing and the ESC burned a FET (Which btw is the same as the Monster Max).