I've been involved with GUE for seven years, and I've seen things evolve. They evolve slowly, when there is no true imperative for change, and very rapidly, when a strong reason is seen. For example, my original training was that there was no need to verify switches on and off stages, since stages were the same as backgas; after Jim Miller's accident, they instantly changed that teaching (which led to an embarrassing moment in a cave in MX, when my recently trained buddy waited very patiently for me to verify his stage pickup, when I had no intention of doing so ). The valve drill has changed, the S-drill has changed, the mnemonics taught to the divers have changed. When things need improving, they get improved. But change for its own sake is regarded very dubiously; Jarrod has said in print that the core value of the system is standardization, and when we breach that, we throw away a great many good things.
The leadership of the organization is constantly looking at possibilities -- when I went to the GUE conference this last fall, there was a fair amount of talk about the experimentation going on with CCRs. They are not unaware of the benefits they could offer, but since safety is an imperative, they haven't endorsed any CCR, because none has met their requirements for reliability and safety of operation. Similarly with sidemount -- they recognize that there are dives where backmount isn't optimal, but those dives are few. Backmounted doubles are so easy -- move a little weight here or there, and you're good to go.
It's not an organization set in stone. It's a conservative organization, which is reluctant to change a system that works very well, just because it has become fashionable to do so.
The leadership of the organization is constantly looking at possibilities -- when I went to the GUE conference this last fall, there was a fair amount of talk about the experimentation going on with CCRs. They are not unaware of the benefits they could offer, but since safety is an imperative, they haven't endorsed any CCR, because none has met their requirements for reliability and safety of operation. Similarly with sidemount -- they recognize that there are dives where backmount isn't optimal, but those dives are few. Backmounted doubles are so easy -- move a little weight here or there, and you're good to go.
It's not an organization set in stone. It's a conservative organization, which is reluctant to change a system that works very well, just because it has become fashionable to do so.