The reason I teach NASE is that we don't do the CESA in OW. I hear that's the case for RAID as well. CESAs are a horrible example for students as they watch their instructors put their health at rish doing multiple bounce dives, with RAPID ascents. Truly a stupid thing to do over and over and over again. Instructors are the best divers out there and yet we get bent at an alarming rate compared to most other divers. Why? The CESA. I hate it and I won't do it. My health is too important.
I don't like it either. I have some doubts about the utility of it, but I have seen a CESA being performed in a real world emergency. I'm not sure the diver in question would have needed any real training to make the decision to swim to the surface but I guess it couldn't hurt. I think when the system was created it was a much more important skill because the SPG wasn't widely used yet.
R..
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