[/QUOTE] I often climb with two ropes for safety and positioning. I switch between the two systems, though at any one time while ascending
only one rope is active and the second gets slack tended about every 20 feet, when I take a rest from ascending.[/QUOTE]
I used to do this. Until I finally realized that I was doing a whole lot of extra work, expending valuable energy, all for nothing.
I climb on two ropes most of the time, just like you. I use a Rope Wrench on one, Hitch Hiker on the other, just like you. I use triple attachment pulleys on both of my systems, and there is a standard triple locking carabineer in the top hole of each triple attachment pulley. They are there basically to keep my pulleys aligned the way that I want them, but also can be used as a big, easy-to-grab handle with which to tend the system, for short bursts. (Usually I use the middle hole that's empty to clip my over-the-shoulder tending strap into, with a small, spring loaded clevis.)
By simply clipping the two top carabineers on the two different climbing systems together, in combination with the self tending over-the-shoulder lanyard, you end up having both systems effortlessly self tending. I hope this all makes sense. Thanks for listening.
Tim