Any advice keeping the wire up when skinning? It was continuously slipping and I finally said screw it and ignored the function.

I had two issues with the heel riser. To keep them up, it used a small ruber band. But on one of my skis the heel riser bended - they too weak, the wires are either to thin or need a design change to make them stronger.

I'm 210lb, 240 w/ pack/boots etc. I break every heel lift ever made, even BD 01's. What happens: stepping 12" uphill on 30 degree slope puts 300 lb on the binding cable, the springs stretch, heel moves backward flipping wire down. With BD 01 free pivot CRANK the springs so they never stretch while climbing. This is the other Huge benefit of free pivot bindings-tight springs to climb, and free pivot to climb. 01 springs always loosen, tighten them almost daily; I prefer this to past bindings that you can barely tighten without vice grips. To replace bent wires take the heel piece off the ski so you don't pre bend/weaken wires to install. I have used figure 8 zip tie around wire sides to tighten them too, hoky but helps, except tall wire w/zip tie won't pass short one, have to put both up. I've designed the new heel lift for tele, need investors?? (tomt@snowcrest.net)

the heel pieces usually have 2 notches for 2 separate climbing wires of differing lengths. My heel risers were acting up I switched the holes they were in and it completely solved the problem. Sometimes the plastic wears down a bit so you have to switch the holes the heel bails are in.

I've had that issue before and solved it by popping the heel riser off and crimping or slightly pinching the climbing wires closer together.