Just a thought but...
Yes, wetsuits are bouyant... but not buoyant enough to keep a struggling diver in a non-working BP/wing which is -10 to - 14lbs head above water.
QUOTE]
If someone is 10 to 14 lbs Neg. then they are not properly weighted in the first place.
They still make bP/wings and back inflates that face plant everyone. They all do this unless counter-weighted (trimmed out.)
Last ime I checked this was the position a diver is suppost to be in. And being that a diver is under the water more time than on the surface is the reason for that position.
.02