Nice set up! Both of my vac beds are also head-out which takes the otherwise intense pressure off the head, face, and nose. And, of course, the Coyote is perfect for use sealed inside with full remote control. I like mine so much I bought a 2nd one. I haven't tried an air mattress yet.
Again with dick kept locked. Gimp was completely immobilised. Been vac'd a few times. But never experienced such immense pressure and seal. Theres no words to describe how perfect and hopeless my predicament was. More so with what was strapped to my thigh.