Very timely thread.
This past weekend I did 3 quarry dives in Ohio in a rental 7mm farmer john and bibbed hood. Water temps were 48-50 on the surface and 41-43 at depth and I had no problems. My feet and hands were a bit numb at the end of each dive and I was a tad chilled, but not bad really. My dives were 30 minutes to 25 ft, 40 minutes to 61 feet and 33 minutes to 52 feet.
I got home and found out that my new Bare 7mm Arctic SGS with 7mm Arctic Vest had finally arrived! It was delivered about 2 hours AFTER I left for the weekend!
Anyway, thanks for the question Wade and the input Pete. Without giving it any thought, I would have put the vest UNDER the suit. But reading your post, I can see why the vest really should go OVER the suit. I hope to give the setup a try in another couple of weeks. The water temps will be a bit warmer by then, but certainly less than balmy! Probably upper 40s to low 50s, maybe mid 50s.
I also purchased the 6mm ice boots and the 5mm gauntlet gloves.
Pete ... I assume I want to gloves nice and snug? I have very small hands for a guy. My hands are actually the same size as my wife's and she's 5'2" and 110 lbs! Now I'm only 5'8' and 155 lbs myself. I went with the XS gloves and they actually seem to fit perfectly. Definitely snug, but my finger tips aren't cramped. It seems that they will provide me with very good dexterity. This past weekend I dove with Small Deep See Iceman 3-finger mittens. They were a bit long in the fingers and took on water at about 30 feet or so. I also didn't really like the dexterity much at all. I had a hard time operating the hose on my wing. Really had to work at getting a proper grip on the inflator/deflator and pretty much held onto it once I had a good grip.