I recently had an embouchure change a few days ago. This has been really inconvenient, since the band that I am playing in is rehearsing a lot and we have a show coming up. Because of this, I currently play with my old embouchure during rehearsal and then practice with my new emouchure during self practice sessions. So I basically use both embouchures. Is this healthy? My old embouchure was wrong because my bottom lip was curled in too much and I'd play from the side, making my endurancec very low. My new embouchure changes this and lets me play in the center. However, my new embouchure isn't strong enough for me to play songs just yet.