Northeastwrecks once bubbled...
They may be popular, but they are total overkill. I own one. Someday you'll see it on Ebay. In the meantime, it lives in my garage. Which is precisely where it belongs. Unstreamlined POS that isn't even appropriate for puddle dives.
Up here, a 27 lb wing is just fine in a wetsuit with an AL80.
If, for some obscure reason, I couldn't ascend with that rig, there is still no worry. Use of a weight harness that allows sequential dropping would solve that problem.
Regardless, even doubles and stages don't require the kind of lift that Karl advocates. I have no problem staying buoyant with dual 104's and an AL40 with a 55 lb wing. In a drysuit, In the North Atlantic. In other words, in conditions that match what I found when I visited Northern California.
Karl's perpetuating the myth that you need to become a human liftbag. He probably uses a 65 lb wing when he dives to 185 feet with his single and a pony.
New divers BEWARE...