Has anyone had success on the Holston with caddis larva? I have been experimenting with various larva patterns, attempting to imitate the fat free living caddis in the river with no success. Have also been tying and fishing imitations in the czech nymph style to no avail. I'm starting to wonder how often they feed on the larva stage. These larva are generally buried in some moss under a rock .... maybe they're not readily available to the trout?

If anyone has had success with larva patterns on the Holston, I'd be interested to know.