Are there two-piece wetsuits -- separate bottoms and tops, so you can buy one or the other or both? I have never seen them for sailing, but I think it would give a lot more versatility as far as mixing and matching for the weather. I always used to wear a full length wetsuit, no matter what the conditions, just to protect my legs from being cut and bruised, but when it was warm I sure wished I didn't have to wear the top.