Nice work eyeflyer, those look pretty good. I've seen them called a san juan worm, usually red w/ or w/out brass bead, but I've seen pink and white san juans too. Used as a dropper for fly fishing trout on rivers here in MT when fish are picky or water clarity is an issue. I keep some nymph patterns in the ice kit too. Tie on as dropper off a small jig or spoon. It seems to work sometimes when nothing else will. Look into scuds and sowbugs if you haven't yet, also effect and easy to tie. I'll have to try out a squirmy san juan worm next time I'm out. I'll get back to you with the results.