Scott Holbert makes some great mouthpieces.... They are true custom units....I played lead and rock on one for over ten years.... I own about 4 of them, different cups and BB's.....I'm having him modify the rim slightly for me on the lead piece....you oughtta ask him about yours...he may give you the option to trade out a backbore or something...all of his pieces are two piece design, and are short shank now...if you have an older standard length, he prob will modify it for you...he also modified his throats into more of an "hourglass" shape..they were more "straight" in years past. ck him out at
WWW.HOLBRASS.COM., or call him at 410-551-3244
Bob List, Baltimore