Interesting responses and I thank all who have answered. Good food for thought. Just fyi, I was certified in 1978 and am approaching my 1000th dive. I have been into the photographer side for the last 4 or 5 years and that has been my focus. I saw at one point I was being selfish and not watching my buddy so I try to do better. I seem to suck up my tank as I try to get that perfect picture. I am still learning how to back up (I am pretty good but need to improve). I am always trying to improve, not impress. Tanks to all...Bill