The zig-zag/rope wrench set up worked a charm. Being able to set a workable line from the ground and get straight to it was a massive bonus. I have heard some mixed reviews about using the zig zag on a single line. A few little adjustments like stiffening up the tether will make it a more efficient system as the wrench sometime wanted to sag down. but besides that I really enjoyed climbing on this system. Another big thanks to Michael Kelly at 'Industrees' for passing us tips for getting onto the wrench.