Any pics Jim? Might help to see how the wear looks and just what's going on. One question about the VO headset, is the F after the threading numerals? I know that the Campagolo bottom brackets that are Italian threaded have 36X24F on them.
For some reason I keep recalling that even though the two standards are close, a problem can arise due to that slight difference in the thread's pitch. Maybe just a stray electron loose in the vast empty space of my cranium.
Bill