http://www.petitjean.ch/eng/MagicHead/default.asp

Yes, I've seen those but haven't tried them (yet).
I will. I have a hunch they will make a streamer wobble,
as adveritzed, but with no tendancy to dive, the
way a lipped-lure does. For bass, surface wobblers
seem to be important lures. But for trout, my experience
tells me you need depth as well as wobble.

I bought his spring loaded dubbing clip kit. I don't use
it a lot, but it's worth having. It does work well
when I do what it does (when I do it?).