Andrew is an amazing person from whom to learn. He has an uncanny and immediate insight into whatever your weak points are. He is also about as close to a fish as a human being can be -- my favorite AG memory was when he was mentoring Faisal through his rebreather class, and we went down on a wreck. I look up and here is AG, completely vertical, in a wetsuit with bright blue free-diving fins, wearing a backplate with two AL80's hip-clipped (and no backgas) and with about 100 feet of heavy polypro line wound around his arm. I thought to myself, "Taking breathing gas underwater is just a necessary annoyance to this guy!" (Faisal is pretty much the same way.)