Quote: (Originally Posted by
tecdivertraining)

Thought that might be the case, I have this QC and its a royal Pain in the ass, I would not like to be breathing from my onboard gas supply in deep water while trying to disconnect that type of fitting and then pug you offboard in, each to their own though, I have worked with lots of student using this fitting and all have some probs when needing to disconnect it in a stressful situation. even if you can see it.
So as I understand, what scenarios are they disconnecting and reconnecting the QC?
The nasal OC reg and BOV are plumbed to plenty of offboard gas. The only time the switch is neccessary is during a deco mix change (hardly a stressfull event). I find it easier than un-porting a reg/BOV and replacing it with a new one. I'll give it a try and see how I like it.