"At Regensburg it was strictly NO nudity in transition (DQable offence)"
I think that's the German Tri Federation enforcing that - it's also a BTF rule in the UK but some IM aren't that bothered. IM tend to work to local country rules for each race
At Switzerland, there aren't changing tents and you have your kit next to the bike, so change there - you'll see nudity all over. (Unless IMCH have changed since 2005 and 2009 when I was there last)
Pebble will tell a story of a young lady getting changed in T1 in front of him at IMCH 2005 - he couldn't sit on the bike comfortably for a while....
Edited: 17/08/2011 at 14:35