I have multiple certifications from each of UTD, TDI, PADI, PSAI, and NSS-CDS. I have had non-certification training and considerable experience with SSI. I say with complete conviction that you cannot judge an agency by any personal experience. For example, my PSAI experiences were all with the same excellent instructor--can I really judge the entire agency from those experiences? My one NSS-CDS instructor is also an instructor for PADI, TDI, and I don't know how many other agencies. Which agency do I judge from my experience with him? Which of the agencies I have trained with does a student judge from an experience with me?
What I really like is hearing people who not only judge entire agencies from one experience, they judge entire agencies with no personal experience, only what they read about them on the Internet. My experiences have at times been completely the opposite of what I so often read in these threads.
---------- Post added December 18th, 2013 at 12:08 PM ----------
As for the Navy....
There was a thread on ScubaBoard a few years ago that linked to a very elaborate U.S. Navy report on a dive fatality. I will summarize it fairly accurately here:
The ship was having some R & R in the north Atlantic, at the edge of an ice floe, and one of the sailors asked if she cold go ice diving. She took two other less experienced divers with her. She was the most experienced diver on board, with 10 lifetime dives. She had had a bad experience on one of her earlier dives when she lost control of her buoyancy and went to the surface, so she used her vast training to assume she needed a lot more weight. I don't recall the total, but I believe ishe wore over 40 pounds. She advised her fellow less experienced divers to do the same. They were attached to tending lines, as required. She did not know the standard line tending signals, so she made up signals to tell the tenders, who had never done it before. While she and her friends were submerged, the tenders did not go over the R & R limit of two beers each. After a while and the realization that they had been down for a long time, the bodies were recovered.