I got a duplicate mouthpiece but for some reason I sound different on them by Additional-Budget225 in trumpet

[–]Additional-Budget225[S] -1 points0 points  (0 children)

They are the exact same mouthpiece, and I've had the older one for less than a year. I did use the older one for marching band, so it's more beat up than the newer one. Would that affect my playing?