I have been out with them in the past and had a good time and did not find them overly restrictive...but that's relative, I suppose. Actually, I was thinking of going out with them again in May. Anyone going to be around during the week between Mother's Day and Ocean Fest?
Anyway, Finster, water should be in the mid-70's, or warmer than it ever gets here. I have never worn more than 3 mil with a hood in Florida, but I'd be more worried about overheating on the surface diving dry. Fortunately, the rides to the sites are brief.