The Red Hook
Years ago, when I first fly fished the San Juan in New, Mexico, I hired a guide. He said that he was going to tie on the hottest fly of the season and guaranteed it would catch lots of huge rainbow.
He was right. I caught well over 20 fish and all were huge. OK... what was the fly you ask???
It was nothing more than a red hook
That's right… a hook with an anodized red finish. No other material. I fished it as a nymph. That was my San Juan Worm for the day.
It caught fish... but that's NOT a fly.