I just picked up a new (to me) American Classis 350 Sprint wheelset. I bought a pair of American Classic skewers from a separate source to use with them. The issue is that the skewers are "loose" in the hubs, and when locked down the wheels have an unacceptable amount of side-to-side movement. I took the AC skewers out and reinstalled the wheels with my Ultegra skewers and there are no issues. The AC skewers are the "cammed" style for lack of a better description ... how tight are these supposed to be? I t seems like I tightened them as much as I could but still be able to throw the lever into the locked position. The axle diameter of the AC skewers just seem to not be large enough. Any ideas?