"Hmm. How does that play into the 'what they need to know' equation?
Is the assumption that a supervisor will always be available and will never suffer an emergency him or herself?
Is the ability to complete a dive from whatever point and potentially rescue someone requisite, and if so, what is left out of 'supervised only' training?"
Sorry for the delay Blackwood:
A "supervised diver" starts every dive with a knowledge of all reasonable hazards (mitigated as a result of this knowledge), a location that is in-line with his or her ability and experience and specific safety checks addressed. Do you not think that this plays into the "need to know criteria?"
Regarding the Supervisor and his/her need for rescue: I believe that every diver (prior to certification) must demonstrate the ability to rescue a fellow diver (Supervisor or not) on the surface/sub-surface. It is part of my "basic" program. All my programs prepare the diver to dive unsupervised. I do see however the need for "resort courses" and do not believe that the criteria is the same as for a diver diving a dry-suit in the North Atlantic where strong current and waves are a safety factor.
Is the assumption that a supervisor will always be available and will never suffer an emergency him or herself?
Is the ability to complete a dive from whatever point and potentially rescue someone requisite, and if so, what is left out of 'supervised only' training?"
Sorry for the delay Blackwood:
A "supervised diver" starts every dive with a knowledge of all reasonable hazards (mitigated as a result of this knowledge), a location that is in-line with his or her ability and experience and specific safety checks addressed. Do you not think that this plays into the "need to know criteria?"
Regarding the Supervisor and his/her need for rescue: I believe that every diver (prior to certification) must demonstrate the ability to rescue a fellow diver (Supervisor or not) on the surface/sub-surface. It is part of my "basic" program. All my programs prepare the diver to dive unsupervised. I do see however the need for "resort courses" and do not believe that the criteria is the same as for a diver diving a dry-suit in the North Atlantic where strong current and waves are a safety factor.