Pressure Optimizer for trombone | KGUmusicTrombone Mouthpiece Pressure Optimizer by KGUmusic Introducing the KGUmusic Trombone Mouthpiece Pressure Optimizer, a revolutionary tool designed to help trombonists of all skill levels break the habit of excessive mouthpiece pressure when playing high notes. Compatible with both large and small shank trombone mouthpieces, this optimizer is an essential addition to your practice routine, providing better control and reducing the risk of lip injuries.