Well, I had a brewing cup of tea go cold whilst reading this thread so I am going to contribute though it may be a repeat of what people have said before. 84 feet is not that far from the surface!! I know, as I prepare for DIR-F, that I can slowly swim 25m in a pool on one breath. If this is a rec dive, then you do not need to make a deco stop (that could be the reason why you are out of air - you didn't dive your plan and stayed down too long!!) and the 3 min stop is only a recommendation, I believe. If you are solo diving, you have contingency, your pony or your slung bottle. If you are buddy diving, you have contingency, your buddy. Solo divers don't drag their contigency on a 30 foot lanyard!! Buddy divers don't have contingency 30 feet away. It took some effort to get thirty feet away without anyone noticing. Is this at night? How strong is the current? How good is the visibility? I know I can make the surface from 84 feet without ascending too fast. Chances are, there may be divers do their safety stop on the way up also. I don't always know I can reach that spare air 30 feet away. So I would chose to ascend because I know that air is guaranteed on the surface, regardless of surface conditions. I must point out that the few deep dives I have done, my buddy has never been more than 5 feet away and I have dove with people I have just met before geting in the water! Diving in NY where the visibility isn't always great

, this should be so instictive to you that I am suprised you have been subjected to the wandering buddy leaving the stationary diver routine!!