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so when i go to every music store or website that i can find i'm presented with 4 or 5 schilke tuba mouthpieces. i know that for standard everything the number is just left as is (ex. schilke 66) but for some cases you get a number afterward (ex. schilke 69C4) what if i wanted a different number at then end? what if you wanted a 69D4 or a 66A3. i've seen a page out there somewhere (anybody know where?) with the descriptions of that the extra numbers and letters mean, but once you imagine your perfect schilke mouthpiece where do you go from there? thanks for any help

I know the last number refers to the 'rim countour'. Does this link help?

SCHILKE MOUTHPIECE DESCRIPTIONS
http://www.osmun.com/prod/access/schilk ... ke_des.htm

or

Schilke Mouthpiece Labeling System
http://www.dallasmusic.org/schilke/Mout ... eling.html

I don't really know, but I SUSPECT you can get a Schilke 69D4...

... the same place you buy WD-30
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Joe Baker, who remembers Bloke talking about getting them custom ordered with a different throat size, but doesn't recall that changing the model #.