Hi Joe,

Herl is more delicate than cheneil and so the fish can bite through it more easily. However, on smaller flies especially, it has more movement in the fibers and fits on the hook better. Now, that all said, it sure looks like you don't need to change anything and you're on to a winning pattern! I'm thinking of trying it out in size 14s or 16s, so I'll probably use some white speckled partridge feathers for the legs and herl. I like the PT version too, so some brown partridge fibres could go on a few versions.

- Jeff