Used Boost with some sizing reference:
http://www.ski-it-again.com/php/skii...t&postid=21793
Sharing a dry suit doesn't sound like a good idea to me. In cool weather I put on my suit at home, drive to the lake to ski. Wear it while driving, skiing, driving, skiing, driving, skiing.... Taking it on and off would take too much time and result it being cold.