At several fly tying shows I have seen some great looking realistic Cased Caddis flies that were tied using more traditional fly tying materials and they looked great. However, along with most other 'realistic flies', I believe they belong in a display case and not out on the water. Most realistic type flies take so much time to create that it would be a shame to fish them. Create some great looking fly plates and sell them or put them in a display case. Don't fish them, the fish will easily take non-realistic type flies that don't take a tenth of the time to create. Larry ---sagefisher---