Thanks a lot,guys!!!

This forum is really a wanderful thing!!

I think that Manny has perfectly understood my problem, also because with the other mpc (more long, and with less opened backbore) I've ever had a clean sound.

You'll never believe in what I'm saying to you, but only taking a full relaxed breath, and think only to release the air instead of pushing it, (with the stomach released) my sound is returned more clear..and what a resonance sound..!!!!

I have some difficult to control notes and intervals expecially in the high range, because I've ever played with a more "active" concept of breathing ("push the air"! "push the air"! "push the air"), but the resonance and relaxe that I found from the first time I've tried this breathing metod encourage me to try and try again! THANKS GUYS! Beppe