I think I know what your feeling. The pope my disagree, but your not a bad person for wanting to mount JP parts on a Ital. I had similar sleepless nights after putting a nice 7spd SIS 105 group on a Bianchi TSX frame "just to ride it, I swear!" It was a fantastic ride. Of course it took away from the selling value, and that's a shame. There were many good quality Italian bikes that sold with a Shimano gruppo. My understanding is that many Italian racing teams preferred Dura Ace over Campy in the late 80's. However, I took the 105's off and put them back on the bike I borrowed them from and sold it. Now I have this nice TSX frame hanging up in my garage and wondering what I was thinking. I've since grown out of my prejudice and am prowling for a 600 or DA group. Much better value IMHO. Sin-No, Bike snobbery-Yes.