Shubb rules when you're using them.
But there's no way to clamp them to the headstock when not in use. So you set them down. Then they get lost. I can't afford to keep buying new ones, and I can't afford, in a gig, to look all around to try to find the capo for the next song. So I mostly use Keysers, which aren't as good but which are right there on the headstock when I need them.
Peter. (All of whose Shubbs are under the cushions of his living room furniture, with the flatpicks.)