Only one way to find out. Fish em.
I've tried chartreuse brassies with luck. They imitate caddis worms. The best brassie is just copper wire, peacock herl, some cdc and a bead.
Lornce those are boar bristles. Much easier to work with than crest that's for sure.
Next one i'll get the head a bit better. I figure these will work excellent on cutty streams.
If you guys have beefs take it to PM or call each other. Personal attacks on other members will not be tolerated. The only one allowed is Me vs. BBT.
It's cage time bro.