i have two italian threaded bottom brackets right now, been riding one for 3 years, and the other for a little over a year and neither have ever come loose. they're both cartridge bearing bottom brackets. on one frame, i used the neon green shimano grease, and on the other in used this old, sort of shimmery silver anti-sieze compound. the anti-sieze stuff is superb, although i'm not sure it's made anymore. the grease has me a little concerned as i've seen even very well-greased seat posts/tubes fuse together after enough boston winters, and neglect...some day i'll pull it out and see for myself...