Hi @INQuarryDiver
14 lbs of weight with a rash guard and an AL80 seems excessive. You may very well be an excessive gas consumer at your level of experience. If you were going to take a trip off the wreck, why didn't you take a compass heading off the wreck so that you could find your way back? Some measures are so easy, but so easy to ignore.
We don't know how much he weighs or the thickness of the "rash guard."
I calculate that if he weighs 180 lbs and wears a bathing suit in salt water, 14 lbs should be about right, but there are variables, he may weigh more, and he may not have been using good descent technique.