Distinguished SOTW Member, Forum Contributor 2015-
I did that recently on baritone. My regular mouthpiece is a Level Air and they have a huge shank bore. I was trying something different so i picked up a cheap Chinese neck that actually plays fine. I reduced the cork diameter on this one so i could give the mouthpiece a proper go but it was a wasted effort. So now I have an extra neck, and i think i paid about $40 for it.My solution to this problem is having several necks and using one mouthpiece in each, when they have significantly different bore diameters.