The problem I have with Torx (never stripped one--yet) is when I am torquing a rotor to spec, I have to put a lot of pressure on the back of the torque wrench to keep the bit seated in the bolt. Its so shallow that if I am not holding it perfect level, and I mean perfectly, it will slip right out and eat a few of those amazing splines. You'll never be able to convince me they are a superior idea.