PerroneFord:I dove the Evolve 40 in DIRF class. With my feet straight, and my jetfins on, I was butt light in my twin 80s. Even the instructor handed me a small weight to stick under my wing. He brought steels for me the next day, but I just went back to my DR Classic instead.
By the way, I was in a 5mm shorty so this was not a case of floaty feet.
I've only worn my drysuit with my oxycheq wing and at 1000psi I'm usually at my 20 or 10 foot stop so I usually have a little bit of air in my boot before I dump my suit. The air in my drysuit contributes to some of my rear being floaty.