Hey, I was wondering...here's my normal usage of mouthpiece. B-flat Yamaha trumpet - B2 Monette C Yamaha trumpet - C2D Monette (switched over to Yamaha 16C4 GP) Now, I took quite a break from the trumpet until about 3 months ago. Note that I had some experience on my C trumpet, but not very much. So, I picked up the trumpet, and I decided that my C2D mouthpiece was too difficult to control intonation. (I found this out by playing that well-known Pines of Rome solo...yeah, it's part of an audition coming up; I found that I could keep the pitch of the high "G" down easier without the "E" going really flat, and overall was just easier playing, so I could focus on the lyrical playing better). So, I've tentatively switched to my 16C4. Now, the question is: is this a good idea or not? Could this cause inconsistencies in my playing since the non-monettes are quite a bit different? I'm just asking because even though I -do- have inconsistencies in my playing, it is very hard for me to find out the REASONS for them. I did have a very bad day of playing yesterday (I was grumpy) and not-so-good day today. I only played a little bit of C trumpet this morning, though. I might talk to my teacher about this, as well. Thanks for any tips you could possibly provide. Oh, and I know I am probably sacrificing some tone quality on my C-trumpet as a result, so keep that in mind, too.