I switched from a 3C to a 1 1/2C and actually found the bigger MP gave me better range, control.

Ive been experimenting with a Bach Commercial 3MV, which is much shallower / brighter.

It’s made me really have to focus on less is more, there’s no room in the MP for extra lip protruding into it.

I’m still figuring it out, but have realized how little I need to engage the aperture corners to change pitch.

Lately, ive been thinking more of “leading with the air” and allowing the embochure/aperture to adapt to the air only as much as necessary to keep the seal between the lips and MP.

When things are going good, it feels almost as though I’m not really doing anything with my lips, just thinking of the note I want to play and it comes…sometimes…sometimes not, I’m working on consistency and control.

I know I’m making minute changes, but focusing more on the air is helping me stay relaxed and not over engaging the lips.

I’m not trying to contradict anything in WindWorks–I am not saying blow harder or even faster, its more subtle like directing the air upward.

Focusing on Passive air released, not blown, helped me a lot, I focused on that for months. But now I am finding the air being the focus helps me. And I’m almost trying to miss the higher note(s) by seeing how little I can get away with, seeing if the note I’m attempting still sounds and ive been amazed at how open and forward my lips feel.

I have been playing on a Monette Prana B6S1 for half a year ( on my trumpet). It’s similar to the Bach 3C. As you say, the mpc fight against me if I blow to hard. Can’t say if it’s the same with a Bach 3C. When playing with minimal press, straight forward, it is easy to play in tune.
I have been playing on the B2S3 for many years. It’s bigger and gives a nice darker tone. I thought it would be easier the reach higher range with the smaller mpc, but in my case there is no difference.
I also have a Monette 6L, which is similar to Bach 3E. This piece is too small for me, but that might be because I have get used to the bigger ones.
When I run on the cornet I use a Monette B2S3, and that is perfect for me.
On the flugel I use a Monette F6 and that mpc give me alla I want.