I am having trouble using web wing. Well actually not using it but having it stand up to trout abuse. I bought the stuff because of an article in Flyfisherman about the web wing caddis. It does definitely make a beautiful fly but the wing (for me) disintegrates after a couple of fish. The article said that Barr chose this material for its toughness. What am I doing wrong? I have cut it with scissors, a roller cutter and exacto knives and still get the same result. Help!