I haven't had a chance to try them out yet, just bought them this afternoon, and immediately had to brag about it, of course.
They have a velcro closure that you adjust to fit behind your heel, so the spur will come to rest exactly in the gap of the sole on your Wescos.( Or whatever inferior boot you climb in).
Then you never touch that one again, but only tighten the one that goes across the front.
Seems like a good idea, but I was too tired to go put my Wesco Highliners on when I got home today.