scubatwinned
Contributor
Albion:Depends what level of screening you are talking about. Some LOB's sit down with the divers at the start of the trip check their cards check their experience, recent dives etc. You cant always be certain just from looking at a card. The weaker divers were then asigned in small groups with a DM for the first few easy dives to assess thier sterenths.
on a boat i sometimes DM on we carry about 28 passengers. We carefully check who has the experience, who we know and share out the potential weaker divers between the DM's. im sure this must be common practice elsewhere, but i have also dive in areas where if you turned up with a OW card and zero dives you could still be thrown into a 40m dive with a similar buddy
Cards can be very deceiving!!!
A few years ago we were diving Brockville Ontario in the St Lawrence a steady current but very very managable one. We were diving the Keystorm, a steel freighter that goes from the bow (8 meters) to the stern (32 meters). A friend of the group whom I dive with was there. I had not met the guy but he is a certified instructor who worked in the Carribean. We get into the engine room which is not all that tight or dark(~28 meters down and ~20 meters vis outside) and he starts to loose it . He could not get the zipper of his bc open to get out his light... One of the girls who was his buddy got him calmed, his light out for him and he was taken out. I think the card that saved the instructor card was an advanced diver!!! We found out later he had never been in a covered overhead situation!!!