Laskey cornet cups are designed specifically for the cornet. We don"t take trumpet mouthpieces and cut them down for the cornet. Cornet mouthpieces allow the cornet to sound like a cornet. While many flugelhorn mouthpieces will force the pitch to go flat in the upper register, Laskey flugelhorn mouthpieces are designed to stay in tune through all registers and maintain an ideal flugelhorn sound.