This comment laser focuses the point behind this thread and states it in the best way possible. The original question on this thread was: Is it bad to constantly switch mouthpieces? What rowuk as so well stated that FIRST the player MUST work to develop a "strong, stable base". The embouchure should first be well established. Once this base is achieved, then is it possible to switch around, not because you are fickle, but because the equipment you select and use best demands it.