A couple months ago I started working through Claude gordons systematic approach and conlins lip flexabilities in an effort to reduce my pressure playing. I think both studies are going really well. My range and endurance are both steadily increasing and my lips no longer look contorted after playing. One thing I've noticed though is that my lips seem to swell more when I play. It's almost as if they swell enough to fill the mouthpiece and block airflow unless I blow harder to reopen them. It seems to be taking away from my ability to play piano. I can certainly play louder and with more power than before, but I can't play consistently as quiet without falling off notes... Has anyone else noted this side effect? And does it go away by practicing something else?