Some sopranos are just out of tune - and nothing can be done to improve them. Most of my tuning issues (need to be sharp a bit) involve vintage sops. But when I play good vintage sops (ones that are in tune) the interior design of the mouthpiece is a non-issue for me. My vintage sops play well with modern pieces.
I too have dealt with tuning issues on vintage sopranos by cutting down the barrels of some mouthpieces. That allows them to shove on further, but I also run into problems with that process because the inside of the piece will only allow so much neck, thus even the cut-off pieces sometimes bottom out.
Fortunately, I've never had to shove on THAT far, but the cut-down barrels do help. And, for what it is worth, my Super Sessions are the best pieces for tuning sharp. I wouldn't waste more time on that Carl Fischer curvy. DAVE
I too have dealt with tuning issues on vintage sopranos by cutting down the barrels of some mouthpieces. That allows them to shove on further, but I also run into problems with that process because the inside of the piece will only allow so much neck, thus even the cut-off pieces sometimes bottom out.
Fortunately, I've never had to shove on THAT far, but the cut-down barrels do help. And, for what it is worth, my Super Sessions are the best pieces for tuning sharp. I wouldn't waste more time on that Carl Fischer curvy. DAVE