| Gordon,
Nice to hear from you.
I like to keep my Bb and C mpcs the same, so, yeah, I think your instincts are right. If you have no problems with the Prana, in other words you feel acclimated to it, go with the Prana version. I will say this: redouble your efforts at getting as full a breath as you can when you play the Prana C mouthpiece. I think that's what the acclimation period is all about. Lots of breath in and lots of thick, relaxed air on the way out. Think of your airstream as touching every last square inch of tubing on the way out. Energy and warmth all at once. In the UK, Maurice Murphy personifies this character of warm energy at all dynamic levels beautifully, I think.
So, whether you choose a 1-5 or a 1-5M I think the use of the breath is the key. If you have the strength in your corners to give you that extra endurance, go with the M cup. Otherwise I think the straight 1-5 version is a dandy mouthpiece and you'll have a few more "highs' in the sound if that's what pleases your ear.
Hope that helps.
ML |