I used a tire bead setter, swapped out the metal barrel with schedule 80 PVC pipe. My cheap ryobi inflater can run pressures up to 125psi if needed to launch a 12 ounce throw weight to heights over 100 feet. The trigger is far better than cracking that valve open on the commercial unit. Total...
My cheap 2nd hand chaps just made way for the bar. Happened during a drop of maybe 18 inches. I pitched the saw, wrapped the worst of wounds up and bombed out of the tree. Once on the ground I improved the dressing with my shirt, finishing up with duct tape out of the truck. took 25 minutes...