RE: ASP/MAGNUM FS400AR Rebuild/Overhaul
For some reason heat treating isn't taken seriously or maybe it is not well understood over there. When I was working with RC electric motors a few years ago it took over two years to get a semi-properly heat treated motor shaft. Mean while the product was released and shafts broke right and left. I extremely rarely saw a bent shaft, only broken. Prior to that my experience with electric motors showed only bent shafts, some weak, some strong but never broken, but these were not of Chinese origin.