Thanks to everyone's input over the past few days, I've finally got a self advancing VT friction hitch that doesn't jam. It works great even after 20 feet, but the only thing that worries me is that I couldn't find anyone else with this type of setup, so I'm not sure if it's the most efficient. Outside of buying the DMM hitch climber pulley, can this configuration be improved?
Definitely too much going on. That is a very dangerous looking set-up you are using. If you are going to use an add in prusik, you may as well adapt to a Hitch Climber technique with a slaice termination. Check out you tube and watch Taylor Hammels video on the Hitch Climber's guide to the canopy. Getting back to your question on improving your VT, I would suggest adding in a couple extra braids near the bottom of the hitch. I hate to be rude, but that whole thing you have going on there is a recipe for disaster. You are asking for trouble. You need to simplify your method. If you have the money, spend 75 dollars and order yourself 3 Ocean Polyester 10 mm sewn eyed prusiks from WesSpur or Sherrill. Eliminate as many double fisherman knots as possible, especially on your primary climbing line. Using a prusik with double fisherman knots as a lanyard adjuster is common, but I would suggest sewn eyed prusiks for your climbing system. To each his own. Climbing at height is one line of work where a mistake can be awful. There are no do overs up in the tree. I know. I shattered my pelvis and broke my neck and back awhile back, when a catface at the base of a white oak I was in had a hollow spot in it that I overlooked. The tree broke with me strapped in about 25 feet in the air and fell on me and crushed me. I have recovered, but I study every step in removals with a microscope these days. I was lucky to live, and for sure lucky to be back in the tree again. Safety before all else.