I have always has good luck with castle stuff also. Only fried a sct (bought used worked once) and an sv2 ran in snow and totally my fault. I believe there is no limit on the mmp for motor. I have even ran 4s with it in a slash 2wd and the 3800kv 4 pole geared to the moon. Having said that seems about 50/50 for peoples luck running them but the bec seems the weak link.