Euro Shank MP in Standard (American ) Receiver

[jamsav]

Is there anything really wrong with this ? Maybe I gain a half inch in total length . Does it matter more at the front end ?
Embarrassed to ask - jamsav

[bort]

Biggest change would probably be response. It might become a little less "tight" and it might make the horn speak a little less well. I'm guessing as well that it might have much more of an effect on some tubas than others (especially if it's already mouthpiece-sensitive).

[MartyNeilan]

Is there anything really wrong with this ? Maybe I gain a half inch in total length . Does it matter more at the front end ?
Embarrassed to ask - jamsav

I get those spam emails every day, but I just delete them.

[windshieldbug]

I get those spam emails every day, but I just delete them.

[jamsav]

Is there anything really wrong with this ? Maybe I gain a half inch in total length . Does it matter more at the front end ?
Embarrassed to ask - jamsav

I get those spam emails every day, but I just delete them.

now I am truly embarrassed....

[MartyNeilan]

I am just sick of all this "gap voodoo" BS.

[Doug Elliott]

"Gap" is a misnomer since the construction of most tubas doesn't really include such a thing. But the fit can make a large difference in playing on some horns, and none at all on others.

[jamsav]

Thanks Wade and doug , for tellin it like it is....js

[Doug Elliott]

I didn't say it was voodoo... on some horns, the fit actually does make a major difference in intonation and feel. But on others it makes no difference.

Many tubas have what I call a "reverse gap" where the receiver is SMALLER than the leadpipe.
Some have a relatively smooth transition. I really don't know which ones are affected or not affected by the fit of the mouthpiece. I just know that some of my customers report than one shank or the other fixes intonation issues.

[cjk]

BTW - I have two Stofer Geib mouthpieces. One with a Euro shank and one with an American shank. I found that the Euro shank one played with a slightly darker tone and a more open low register. Upon careful measurement I discovered that the Euro MP has a larger backbore than the American version. That's why I had the Euro MP milled down instead of using the MP with the stock American shank.

The moral of that story is don't always believe "identical" MP's with different shank sizes are identical.

Exactly how did you measure the backbore? Can you elaborate on the specifics of how you did this?

Are you measuring the inside diameter of the shank with a set of calipers or are you doing something else?