| I have 2 Heim MPs, a one and a two.The #2 is quite a bit deeper. Narrow rims on both. Ordinarily I play a fat-shanked Bob Reeves 42C or a Schilke 9C4 and the Heim openings are just about the same size. (I use a dime and look at where the little line of type across the lower part comes in relation to the rim of the MP. Not too scientific but it allows one to make quick comparisons without getting crazy over it.) The feel is nice and smooth, a little throaty and rough on low notes, high notes easy on the #1. They notch well and securely.
When all is said and done, the sound in your head is the sound you'll get on nearly any "normal" MP (excluding the freaky ones).
Of the 4 that I mentioned in this post, I keep coming back to the Reeves. Why? One word: intonation - gives the lie to the claim that the end of the MP shank must be near or against the lead pipe flange inside the receiver.
My $0.02.
Tom// |