Haven’t tried it but was thinking about it after finding a 1 1/2C worked better for me than a 3C… Played Baritone (Euphonium) in middle school…was thinking maybe that’s why a bigger mp worked better… Probably not, probably just something physical.

I find playing trombone helps a lot. I can feel body tension I was unaware of. The shoulders relax considerably and I am now aware of this when playing the trumpet. I then find relaxed chops just slowly slurring and use this to find the same shape on the trumpet. I used to start with way too much tension so had nowhere to go. I am even starting to play trombone music and use it to review the early videos of the course. Different instrument with different expectations as Greg says. It only takes a few minutes each day and can be part of my warm up or when I feel too tense on the trumpet.

I was thinking about getting a PBone for pedal tone practice…I would think if you can get into the upper register on trombone your embouchure and aperture corners should get strong enough to play trumpet in the upper register.