So you mean with the no-pin, full length grub screw on that goes all the way thought the axle stub hole, it'll cost you less if it rounds out, versus the kind of hex were you have a pin and a grub screw, and the grub clamps the hex tight around the CVD, will cost you more in parts if it rounds out? I'm kinda having a hard time picturing both situations.Another benefit of the screw in pin is that if you strip one, at most, you have to ruin a hex/hub. But with ones that are secured via the end of the cvd shaft, it can cost you a hex and a shaft because you can't get the stupid grub out.