Thanks to both of you! What I am hearing you both say is that the squeeze is something that will be there no matter what suit material I go with. The only other option would be a semi-dry but not sure that would be a good long term solution for repetitive dives.
I am not saying that a squeeze will always be there...at least not from the standpoint of discomfort. There are a couple of factors that help:
1. diving in a horizontal position - this is typically the most efficient position to be in and it helps keep the air bubble in the suit that provides for warmth to be controllable and more evenly distributed. Air in the suit will rise to the highest point of the suit...if you go vertical head down then the air will rise to the highpoint which will be your feet, and if you go vertical feet down then the air will tend to rise around your shoulders (if your shoulder vent/dumpvalve is open the suit will vent out the air. Which ever part is lowest will feel a bit vacuum packed. This sensation will help you by reminding you to even out horizontally and perhaps add a bit of air to inflate the suit a bit to combat that wrapped sensation.
2. the insulating undergarment one wears will also help by creating a barrier against that wrapped feeling...but if you descend without putting air in the suit or if you go vertical with your head as the highpoint and let the air out of your suit then you will likely find that your legs feel that wrapped sensation. Again this is a reminder to level out your body and add a bit of air.
I have yet to feel an uncomfortable squeeze from my drysuit except when I purposely descended without adding air to see what a squeeze felt like.
I also have semi-dry (Waterproof Combat SD). It seals very well, in fact, I have done nearly 1-hour dives in it and found that I am nearly dry, only my legs from just above my knees down to my ankles are wt...If I was to fold the ankle seals under I am pretty sure my legs would be dry as well...but then I would not be able to vent and descend. I suffer more of a squeeze in my semidry than I do my drysuit on any given day. The fact that I don't get wet much more past my knees when diving my semi-dry makes multiple dives more comfortable....though if I really want comfort in cold water for multiple dives then my drysuit is where it is at.
Here in Belgium the climate is almost identical to the Pacific Northwest. We used to live in Washington State (@ 35 min north of seattle), and my youngest is currently living in Eugene Oregon, so we are very familiar with the weather/climate where you are.
My drysuit is made of a very thin Goretex like material. My wife's drysuit is 5mm hyper-compressed neoprene (I think that is what it is called). It is supple but has more structure than the waterproof core of my Fusion suit. I would not doubt that her suit does not squeeze/wrap down as much as my suite does...her suit also has some inherent insulating properties that mine does not have.
The bottom line is that comparing wetsuit diving to drysuit diving is almost akin to comparing motorboating to sailing....both happen on/in the water and there is some overlap to them but in the end, they are different activities.
I saw something recently that I am going to try the next time I dive my semi-dry...all our reg sets have the extra LP inflation hose attached all the time whether we are diving wet or dry. I recently saw a woman diving her semi-dry with an air nozzle attached to the extra LP inflation hose on her reg set. I asked why she dove with it and she showed me that she sticks it in her wrist cuff to inject some air into her suit to preven squeeze when diving her semi-dry. I have also seen some folks put dump inflation and exhaust valves on their semi-dry...not sure if I would go that far...but I am going to try the air nozzle and see how that works, as I routinely get a squeeze in the area of the rear zipper, and also around my hips...it is not bothersome enough that it would cause me to abort the dive but it is noticable....I am hoping a little air in my semi-dry will balance out the comfort, I already have the air nozzle fitting...hoping it does not cause my semi-dry to become more wetsuit like....if so then I will tolerate the squeeze for the benefit of being dry (dryer).
Until you get used to it, drysuit diving is just different than wetsuit diving.
Hope that helps clear things up.
-Z