Actually they were bearings from a Cane Creek hs that I removed from a Giant frame. I'm aware of the differances 'tween Campy and Cane Creek integrated hs-----the latter being 45 deg. bearing surface and the former having 2 diff. angles for top and bottom. The bottom bearings went in just fine, but the top bearings asked for some help from the press. I applied sandpaper & steel wool to the aluminum inserts, lubed them before applying the press. Looking at the headtube from the inside, the wall thickness is minimal seems to me; plus there appears to be some reinforcement applied to the bottom half of the head tube. Was it a failure waiting to happen....? Or just my dumb ham-handedness & lack of experience w carbon?