I have no problems with the hubs. I used thread lock on the screw per instructions. And never had an issue with them binding up. I used the stock top hat spacer on top on the hub as it was shorter than the exotek one. I also had to shim the hub in the arm with a .1mm shim to get the slop out. But no issues with binding on my TA07, EXO6, or 419x.

But if you are really having issues and not happy with them, you can try the TA05 hubs. This was the go to alternative to stock hubs before Exotek. They are softer than stock, but I never had any break.