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@Bowers
At the surface, diver 1 needs ~15lbs of lift for his head plus the gas in the tank.
Diver 2 needs the same 15lbs of lift for his head plus the gas in the tank as both are neutral at the surface.
At depth, diver 1 doesn't need any more lift because he has ~6lbs of gas in the tank and that's it. Diver 2 however needs the 6lbs for gas + the 14lbs for the suit so a 15lb wing is insufficient and you'd want to go up to a 25lb ish wing.
extra lift needs to be added for any "ditchable" items as well since those aren't factored into your buoyancy.
@JamesBon92007 al80's have the potential to lose 6.2lbs of mass assuming they are not overfilled. A XXS 7mm would probably be about 10lbs. For that a 20lb wing will probably work, but in a 7mm especially in OW I wouldn't personally cut it that close
20lbs of weight to me means that the diver may be overweighted, either by choice, or by necessity, but with that much lead, you're going to want a bigger wing
At the surface, diver 1 needs ~15lbs of lift for his head plus the gas in the tank.
Diver 2 needs the same 15lbs of lift for his head plus the gas in the tank as both are neutral at the surface.
At depth, diver 1 doesn't need any more lift because he has ~6lbs of gas in the tank and that's it. Diver 2 however needs the 6lbs for gas + the 14lbs for the suit so a 15lb wing is insufficient and you'd want to go up to a 25lb ish wing.
extra lift needs to be added for any "ditchable" items as well since those aren't factored into your buoyancy.
@JamesBon92007 al80's have the potential to lose 6.2lbs of mass assuming they are not overfilled. A XXS 7mm would probably be about 10lbs. For that a 20lb wing will probably work, but in a 7mm especially in OW I wouldn't personally cut it that close
20lbs of weight to me means that the diver may be overweighted, either by choice, or by necessity, but with that much lead, you're going to want a bigger wing