I think the problem you will find, is Jacket Style BC's vary in the amount of lift they can provide based on the size of the jacket. Big jacket, lots of lift, small jacket.. little lift. For example I have some brands that will vary in the amount of lift from 20 to 40 lbs depending on size. That is part of the reason why the back inflate type system would be more popular if diving twins, where depending on the tanks - you might require a bit more lift.
For example, a Zeagle can be outfitted with a 35, 45, or 60lb and up bladder - regardless of whether it is an XS or a XXL.
Your profile shows Texas, don't know if you're near the Dallas area, but if you are, or get by here, I'd be more than happy to let you check out the Zeagle in our pool. I think you might find it will fill your needs a little better than any of the Jacket style, if any, you will find.
For example, a Zeagle can be outfitted with a 35, 45, or 60lb and up bladder - regardless of whether it is an XS or a XXL.
Your profile shows Texas, don't know if you're near the Dallas area, but if you are, or get by here, I'd be more than happy to let you check out the Zeagle in our pool. I think you might find it will fill your needs a little better than any of the Jacket style, if any, you will find.