Thanks for the kind words, everyone.
Diane, I have an M-20 that I have tested and found to put out 13 psi (what I have found several of the M-15/EX-15 to put out when they were tested as part of my concentrator analysis project). I dialed it down to 8 LPM (the LPMs the M-15/EX-15 should put out) to mimic an M-15/EX-15 and filmed it running the Scorpion.