I have no doubt my drivers aren't correctly positioned. They are too close together and slightly to the left. After I fully clipped the track and tightened up all the originals I have not lost a single one. That was more than 3000mi ago. Probably should remove driveshaft and reposition the drivers but they are not wearing anymore so. Anyway here is some pics.Sure hope it is just the alignment and not the drivers spaced incorrectly on the drive shaft. Curious if this is what may have led to Cannondale's track missing so many clips? Wish I could check mine but it's 5 hours away from my home.