Heh, I only invert like that when I'm looking beneath something, like table corals. The checkout portion of my first dive consisted of me doing mask remove&replace and reg recovery, then we went down to 30m and did wreck penetration. I can't however claim more experience/dives than the guide, because it happened to be the dive center owner who grew up in french carribean(Martinique) and has been diving since he was 8, and also works as a commercial diver.I did a checkout dive in the Maldives ... despite the fact that I had more dives and training than the dive guide who evaluated me. He didn't seem to comprehend why I did the whole dive inverted ... which is how I like to view tiny critters on a coral reef. When we came back in he asked me if I needed more weight ...
... Bob (Grateful Diver)