I have had the set-screw version Eccentric (built into a ti frame) for over a year.What I have noticed is the shell is pulled away from the eccentric when I tighten the set-screws. That's fine because it's the way it was designed, however it seems to be ovalizing from use. I don't abuse the set-screws, using just as much tension as required to set the eccentric. I replaced the old eccentric with a Bushnell now and am hoping the problem is solved. Has anyone noticed their ti set-screw eccentric shells getting baggy? There's well over an 1/8" sag with eccentric in the shell and set-screws completely backed off.