I've tried a setup similar. It work great if you have a place to stand to make your second pitch before you get to your tie-in point. The problem comes in the lenght of your bridge limits how close you can go to your TIP.
I only use a self advancing hitch for initial ascent. Once the second pitch has been made I switch over to traditional DRT on the other leg of my rope, therefore, no problems descending on that rig.
took a close pic jim, its a little blurry but you should be able to work it out.
tied this with a butterfly instead of a clove today as suggested by someone in another forum, it sat better on the krab like this.
Sawmill, to descend with this i just take the butterfly knot off and attach the krab back to my harness so its in a split tail set up again.
This is really better suited to a working arborist set up i think. just wanted something for those post lunch ascents.
Originally posted by stevebullman
about the same as you would using a normal distel or V.T
And how much would that be? I tried using a distel (low and slow, of course), but it didn't seem to be very efficient for me. I had the "legs" of the distel tied as short as I could to attach to my biner, but it still ended up that when I stood (using a footlock technique), almost half of the distance I stood up took up the slack in the distel system, then it was able to advance the knot about the last 12 inches of my standing movement. Is that the way it is supposed to work, or do I just need to keep working on my setup somehow?
By the way, do you hold the down above the distel in order to stabilize yourself when you stand? I felt like I didn't have anywhere to put my hands to hold onto the rope.
I like the idea of it being self advancing, maybe that would be away around my problem.
patrick, i wasn't footlocking with this set up, just body thrusting.
to be honest i have only juyst started using a distel myself. I know what you mean about effort to take up the slack first, but with this set up, as long as you keep pulling it wont slacken off, only when you stop will it slacken off.
When I slept overnight in the treeboat 2 weeks ago, I used a similar setup. I put a pulley on TOP of the distel, too. A carabiner was clipped to the pulley, with a loop runner hanging from the pulley. The distel was tied well above me, out of my reach, but pulling on the loop runner would allow me a controlled descent.
haven't tried the v.t much yet. expecting a bit of tennex in the post tomorrow so gonna experiment.
I was thinking, if you left the butterfly knot done up after you switched back to split tail would it come undone, probably would, but maybe could use another knot in place. that way it would make the job of switching over when you needed a lot easier