Is there a point where the mouthpiece becomes to small? What I’m getting at is: For the last couple of years I’ve been playing on a Bach 5b and have had no problems but now I’m feeling like it may be a tad small. My usable range has greatly increased since I’ve comeback to playing and was made significantly easier since my playing a 5b exclusively (I used to jump around quite a bit because nothing I had felt right) Now it seems to be less flexible as far as lip slurs and centering and sometimes I’ll over shoot a partial-shooting for a C in the staff I’ll hit an E, shoot for the E and I’ll hit the G. From G above the staff to E above high C everything is solid. Most of my efforts go towards the repertoire of solo cornet in brass band which is mostly in a higher register than the 2nd and 3rd parts I play in other bands. Can to small of a diameter hinder things like flexibility? I have a Wick 4 that I haven used in quite a while as it takes some work to play well-I can hang but my endurance suffers What is your all’s take? Should I work with the Wick or maybe try a Bach 3c/b?