TSandM:
That's true -- I rarely even bother unless I'm going deeper than 60 or 70 feet, and the other day we went to 96 and I never noticed the glove squeeze. I think it was one of Uncle Pug's posts that first suggested that tubes might not be absolutely necessary.
Hmm. It's interesting to read this and Bob's post. I recently started using dry gloves (DC rings on plain DUI latex seals), and I used the bungee method the first few times I wore the gloves (probably no more than 10 dives so far).
I never had any problems while using the bungee, although they seemed a bit scratchy on the underside of my wrist, but I managed to forget them a few dives later on another trip. I had some serious shrink-wrapping going on, but no actual problems.
This past weekend I was on some wrecks down to 126 fsw... again, no bungee or any other method of equalization. And again, no problem... including on ascent. I shot a bag from 30' for a deco hang, and I don't recall having any problems with mickey mouse hands.
Could be my wrist seals don't work very effectively under the rings... I know my arms sure had a good amount of seepage the one time I wore my drysuit in a pool without the gloves on (wet or dry), and the seal is definitely pretty "short" inside due to the rings, but it wasn't a full flood, either.
So I dunno... I would hesitate to make any broad statement due to my experience, but I can say that unless and until something happens to make me change my mind, I'm not planning to use any sort of tube or strings under my dry gloves in the future.