Oh, don't get me wrong... I'd seriously consider polyolefin. It's just strange.
Absorbs water, right? That's why it's not bouyant. But does it keep water from circulating through? That is, is it snug and stretchy?
And... um... does it handle that-which-people-don't-admit-to-doing-in-a-wetsuit?
I didn't meant to challenge you with the: why change? For many things I follow that.
With that said, it does absorb water, almost in the same way wool absorbs water. Is not damp to the touch like cotton or other fabrics may feel.
The Henderson I have for many years, so depending on my weight fluctuation has been perfectly snug to flapping in the wind, which is why I decided to get a second suit (custom of an almost identical material),
It doesn't stretch much at all. I turn it inside out and dries very fast. Now unless I have a drysuit I pee about 3 or 4 times per dive, I do, don't deny it. I work with sailors in all kind of boats and I'm sick of having to hold it... when I dive, I pee.
So anyways mine don't smell. Maybe the fact that each time I do it I turn upside down and flush it with the second stage in my neck, (the flushing is as pleasant as the peeing) Then right after the dive, I take it off and rinse it in the ocean.
Formal fresh water rinse at the dock doesn't happen all the time, it gets a splash as the boat is being wash, then the sun dries it and is ready for the next dive.
I do the same with neoprene suits and I keep them stink free. Wish I could do the same with gym shoes.