That tail can be imitating a leech or a fish, for a minnow I like this method for squaring the tail up. http://www.flyfishersrepublic.com/ty...bou-wing-tail/ For a leech or Dog Nobbler http://www.scandicfly.dk/lang-en/put...ack-str-8.html I prefer the marabou not squared off and that's easily accomplished by taking your maribou from one side and the end of the feather.