I like that original reply. Nothing! That sounds about right.
LUBOLD8431 - Do you mean top and bottom as in shirt and pants or as in a top and bottom layer? I have a 300g Polarfleec garment too. When it's really cold I wear a polypro layer underneath. I think I need to get one of those vests for next winter too, though. That Saturday back in January was really cold. But after reading your post I'm thinking maybe just put another layer of polypro over my garment.
I just can't imagine walking down to the water at Dutch, in a drysuit when it's in the high 80s in the middle of the summer! I'm still thinking I'll break out my 7mm for the summer. I figure either way I'll sweat my ass off before I get in, but I'll be just a little cooler in the 7mm, and I think the 7mm will be a litte more comfortable when I'm getting out after my dive.
Maybe I just need to bring both to one of those first weekends and dive both suits?