kwinter
Contributor
Forgive the n00b question, but orientation (SM/BM) aside, why would an SCR be better than the fully flexible CCR for this unit?
Because there are lots of places in the world that are not rebreather friendly and you can't get a decent supply of O2, but nitrox might be readily available. I wouldn't want to run it CCR with a supply of only 32%. There is no way the CMF valve could keep up with my metabolic needs. Having the ability to switch back and forth between SCR and CCR configurations is paramount for me. The GEM mouthpiece is a real work of art in that regard.