Adding some additional comments – I do at least try to do the singing C exercises with as much of a Maaaooohhh setting as possible. It is different from my normal setting so at least I’m trying to push it in that direction. One particular problem I’m having is the transistor from breathing to placing the mouthpiece. My mind is confused with this process. I end up starting to release the air before placing the mouthpiece because I want to make sure I’m using aperture corners instead of my normal flat against the teeth setting. Maybe someday I’ll be able to place the mouthpiece first and then breathe. One day at a time…