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Thanks for pointing this out. The article I wrote for UWS & comments on Scubaboard were meant to reiterate the highlights for cave divers already trained for these procedures in class and in the cave by a cave instructor.However there are a few points in Jim Wyatt's description that are a bit cursory and maybe miss the whole picture (I'm confident his actual lecture on the topic is probably more thorough).
Thanks for pointing this out. The article I wrote for UWS & comments on Scubaboard were meant to reiterate the highlights for cave divers already trained for these procedures in class and in the cave by a cave instructor.