Mouthpiece Throats

I think my mouthpiece throat is too small. What can be done? OK, about drilling out mouthpiece throats: Making a mouthpiece throat larger will make it longer as well as it cuts into the back bore.

You might try going to a 25 or 24 throat. Or you could try relaxing your corners and pivoting the horn away from your top lip when playing over high c. There are several things that add to the overall amount of resistance. Mouthpiece pressure, lip compression, lip curl, tongue arch, corner tension. Sometimes backing off on one of these will really free up the upper register.

Also Giardinelli mpc project more than Schilke because they have shaved shoulders between the cup and throat. I have this done on all my Schilke mpc.

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I would be cautious with a 19 throat. The bigger the hole the longer the throat is. This long throat takes the front part of the backbore out. This causes many problems with intonation. Even if the back bore were recut after boring out the throat it could be fixed only part of the way (unless it was filled in before it was cut). Think about it if the throat is 1/8″ longer then the back bore taper needs to be moved 1/8″.

Dynamics are also a problem. Some players actually need to play softly from time to time. Huge throats make this soft playing all but impossible. That big a hole is going to be hard to keep a spin on the notes.

Usually, 27 throats are bored to 26 or 25 without a back bore change. I personally consider 22 as big as I would ever go on a throat and that needs to be cut that way not bored out. I believe in open equipment, but you are heading toward the baritone range past 22.  LOL

Pops