How does the Polar D undersuit compare to the Fourth Element Artic thickness wise ? I'm hoping the Artic will be thinner. I've been using the Polar D for a few dives now, and I'm thinking I want something a lot less bulky. I'm finding my movement is restricted with this under suit and getting air where I need it - into the legs isn't always easy. As an experiment, I tried some thermal cycling leggings and top on in the pool the other week; and the difference was night and day for me. I was able to vent air from the suit a lot easier with the cyling gear. Also adding air to the suit seemed to spread around alot easier - and I can get the air into the legs. Obviously cycling gear isn't going to provide enough thermal protection and also doesn't really have any 'structure' to it to hold off the dry suit material, hence my interest in the Artics. Really interested to hear any opinions.