Here is a video showing you how to install second stage to Scubapro full face mask. This video is to just make sure you practice with the set up you have and become very much proficient
Here’s a question… I have decided upon the Scubapro FFM for exactly this reason, what a great option if you carry a 40 cubic foot pony for redundant air. Question is: Can you take the comm port out and put the surface air valve there?