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Brigitte Lucas wrote about use of line "twirling" (by which I understand to be line wraps) every few feet for telling which way is in or out of a wreck. I have to agree here with Kevin-Neil Klop, who wrote: >One of the things that I and those that learned to dive wrecks with me, >learned was not to make things more complex than they have to be. I seriously question whether the direction of line wraps is effective for finding ones way out of a wreck, especially if one were wearing gloves. Remember that the diver here is assumed to be totally silted out and so disoriented that he doesn't know what direction he is facing. In cave diving, one is trained to make as few line wraps as possible since they increase the difficulty of following a line out in zero vis. For permanent lines, marker arrows may be used to point towards the exit in areas where there may be confusion. For exploration lines, the guy holding the reel is in front, and knows which way is out. Everyone else on the team is between him and air, so there is never confusion as to which way to go. This line protocol is well proven in the cave environment, I have used it in wrecks, and I would suggest that it works much better than Brigitte's instructor's suggestion. John HeimannJ@ma*.nd*.gt*.co*
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