I normally play Vincent Bach 12C. Just bought a new King 2B Legend, followed by a King 12C mouthpiece. Seems to me to be the same shape, but it is hard to measure. Is the King 12C similar in rim, cup, throut etc..?

[quote="hansingelstam"]I normally play Vincent Bach 12C. Just bought a new King 2B Legend, followed by a King 12C mouthpiece. Seems to me to be the same shape, but it is hard to measure. Is the King 12C similar in rim, cup, throut etc..?[/quote]

Pretty much the same. (At least within the rather substantial variations encountered in Bach mouthpiece dimensions.) You'll be fine with a King 12C - until (like most the rest of us) you're not!