Yah know, I haven't had any problems with my BK 9920... But never had any luck with the schulze controllers except the 40.160..... that thing NEVER got warm.... But I still wouldn't buy from schulze... it's so hard gettin' warranty from overseas... in just a pain in the *ss..... hey, if you don't want the broken ESC, I'll take it and send it... ;) j/k, but seriously... :)