Greetings. i'm a newbie here with a 321 question.
i just picked a 321 up off Ebay. the 321 is listed as having a .571" bore. this would lead me to believe that my large shank mouthpieces will fit. is this a correct assumption because the horn that i recieved has a small shank mp included and my large shanks won't fit. i'm a trombone player by trade and picked this up because i want to dabble a bit.
did i get some sort of mongrel or was this changed on this particular horn?
thanks in advance, Tim