Maybe not, but by asking around I now have someone willing to loan me one to try for myself.
Funny how you had to strip all the BS off the transpac, that's why I sold mine.
Thats the best way to find out...
Everyone has their own buoyancy characteristics in the water... It "may" work with all the He you plan on using, but I never like diving at the edge of the lift limit for my gear... Esp in a drysuit... You'd be surprised how negative one becomes when the suit floods...