Sorry guys...I was typing a long response and pulled the trigger on my initial reply a tad prematurely. A bounce dive is one thing...doing it as a planned buddy dive of any duration and you really don't have much gas left for anything other than a reading on your depth gauge.
Yesterday I did a wreck dive with a single tank (and 13 cu-ft pony) with about 140 cu-ft in it at 3000 psi. Dropped in swam down to about 140 and then cruised for a few minutes as we drifted toward a wreck. As we got to the wreck, my buddy shot a large fish and drifted off in the 2 kt current.
I saw another fish, grabed onto the wreck at the deck at 160 ft, stalked a fish for maybe a minute, speared it, fought it a little, allowed myself to sink down into the ship to the bottom where I was out of the current (at about 190 ft). I then pulled out my knofe and killed the fish (at that point I remebered I forgot my ascent reel), I then removed fish from the shaft, placed it in my bag, re-loaded the spear, strung the line and loaded one band of gun for sharks. I remember feeling pretty narced and a little out of breath, when wrestling with the fish (I've not been over 140 feet for 8 months probably). I remember breathing faster than I should and could detect a little resistance in the reg, so i must have been sucking pretty hard.
I then ascended at a reasonable pace (my computer had died on the descent), which i did not realize until I was at a depth of about 100 feet. When I first realized the computer was dead, i checked the time and it was 8:25 am.
I hate ascending without a computer (or any depth guage) but I came up following my little bubbles and kinda hurried toward the surface because I wanted to send up a smb, which only had 25 of line on it, so I didn't stop deeper. My watch read 9:36 when I reached 25 feet. I did 12 minutes of hang and hoped that was a reasonable time and ascended.
I still had half my air left (so i used about 70 cu-ft).
