I have this problem on my slack pursuit. with the light weight 4 bolt hub the one with the set screw. I've indicated axle even crank for runout nothing. I can see by eye the sprocket bounces even with sprockets for the 4 bolt hub I discovered. I couldn't find a good way to indicate the hub. I think my hub is bad. What does everyone recommend from hubs. I was thinking floating or clamp on idk 4 or 6 either. Also on the clamp on one's to you leave a little clearance between clamps Thanks in advance.