Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
I doubt I will ever tie my own flys
OK, I'm convinced. Just cancelled a week trip in Montana. Don't want to be bothered with taking such tiny fish off the fly.
...rather than slurping caddis and mayflies from the surface like an average brown that would likely reach a maximum length of 19.5 inches.