I just don't understand why there would be a correlation between "big lips" and the need for a wide rim.I need [that] rim, because I have big lips.
- The best I can tell, (my own) facial muscles extend all the way under (my own) lips, and the surface of the lips (and I'm certainly not an anatomist) seems to be - simply - a transitional surface between the interior of the mouth and the body's (regular/epidermis-bearing) skin.
The only part of the lips which really matter (in my best estimation - regardless of how wide that transitional skin might be) is/are the apex of the arched lips' inner diameter, where the critical vibration occurs.
To repeat the premise, I just see no correlation between "big lips" and a necessity for a wide mouthpiece rim.
Indeed: I've sold my narrowest rims (as well as medium-width) to people with "big lips", and they call me and order more of them.
The second oboe player (would be an amazing principal, were they appointed) in the Memphis Symphony has "big lips" and there's just no problem with them managing anything whatsoever, in regards to their playing. To understand what that oboe player - with "big lips" must do, the tip of this American/"Tabuteau"-style reed is extremely thin, those two "windows" (towards the back) add resonance (which is why this style of reed - assuming very well-made - sound "pretty" and store-bought reeds sound "harsh"), and the lips must ONLY contact that small area between the tip and those two symmetrical "windows". (They taught my daughter briefly - years ago. They actually brought it up in a lesson, and reported that it wasn't/isn't an issue at all.) Note how narrow that area - between the reed tip and the "windows" actually is...
OK..."What prompted all of this, bloke...??"
I'm considering offering yet another (totally different cup) model of Sellmansberger mouthpiece (now: aurally tested and thumbs-up'ed by Mrs. bloke, and - well - it pleases me tremendously...(for my personal use, and in my personal opinion) for certain types of tubas...
...and I'm considering (simply) offering it in silver plating one-piece brass, with no options whatsoever (ie. "like most mouthpieces"). If I go into production, it will feature my (most popular, and the only one I'm willing to personally use) #2 profile rim, which is narrow (yet not particularly "sharp-edged").
sure: The plating will wear off the rim, and it will scuff/scratch easily, but - those who confuse the vibration-amplification properties of tubas with those of guitars, violins, and drums - might be more likely to buy one.