I have a 1993 Campy Chorus groupo. Before that it was a Shimano 600 groupo. One of the things I noticed onthe Campy stuff was that the hubs have a small hole in the center to add grease. That's fine. But everytime I add grease(usually Pedro's stuff) it just seems to leak out of the side of the hubs. Also, when I grease the rear hub it totally silences the clicking noise as you coast. It's not a problem to me but I wanted to know if the lack of clicking is undesirable machanically.