How to apply dubbing? Dubbing is a technique that is often done poorly, resulting in shabby looking flies. When fly tier's learn how to apply dubbing correctly the shape and proportion of their flies begin to look much better. In this video we show how to apply dubbing correctly- use small amounts, ample pressure, and apply in one direction on the thread. For right handed fly tier's use the right thumb and forefinger to apply dubbing in a clockwise direction onto the thread. This video demonstrates how to apply dubbing to thread.