Just a bit of weirdness - the pedal threads in the crank were very tight. The existing pedals felt tight coming out - required wrench force all the way - and my preferred clipless pedals felt so tight going in that I stopped and brought the bike to my LBS to tap the threads. The tap removed more metal than I'd have expected. I hunted around here and found this old thread, which suggests that the Italian interpretation of 9/16 x 20 is slightly tighter than the English standard. I learn something new every day.
http://www.bikeforums.net/classic-vi...atability.html