Iv recently put together an electric skateboard with an ntm 50mm 380kv, which I understand isn't optimal but it's all hk had in stock.The board has a 40 tooth large pulley and 14 tooth small pulley. I bought 2 e flight 3200 6s and a phoenixtech 115 amp esc (airplane esc) because it was all the local hobby shop had. Anyways on the bench it worked fine. With the exception of some cogging. I tried to ride the thing with a Small rolling start and my esc actually burst into flames.... I bought another 100 amp turbojet esc and it fried in short order also. At least it didn't go up in flames. Anyhow, I ordered myself a hobbywing ez run 150amp and hope I don't blow another $100.00. Was I just pulling too many amps for the airplane esc without a good rolling start. Can you guys stand on your board with it stopped and hit the throttle without frying esc's? The ez run is supposed to have a burst rating of 1050 amps so i hope I'm ok. I also ordered a 200 amp 12-24v circuit breaker to put between battery and esc. I'm hoping the airplane esc"s were just not up to the task. Thanks for any info.