How would Vishnu wets handle pow?

Not well

Not all that great but probably better than most skis in that waist width due to the rocker.

depends a lot of the consistency of the snow in my experience.

I skied a foot of fresh, dry, perfect utah pow on them and it was great! Same goes with pretty much anything ankle deep. They really thrive in soft snow, slush, and packed powder conditions.

But in any sort of heavy sticky pow, chop, or anything that requires you to really power through the snow, they get bogged down. The tips are so soft that you really can't drive the ski in an aggressive way - this is probably the biggest drawback with the wets. There is a reason why most pow skis are on the heavier side, you need something that can actually cut through and push snow around when you want it to. The wets aren't made to do that, they're made to take air, jump off any small bump, and jib everything, not charge through sticky heavy chop.

exactly what you would think, 88 under the waist means they slow as a mf to turn, hard to engage. I've skied mine in 18 in and they weren't very fun but i kept up with everybody on proper 104-112 under foot skis

Any deepish snow with decent weight to it they will not ski amazingly. Will be hard to turn and floating and moving may be hard.

Better than expected, tried my friends wets in some boot deep last season and they floated quite well for their waist. My touring setup at the same waist is actually worse