Hi. I'm new to the piccolo trumpet. I just tried one a few days ago and have a very hard time focusing my embrochure on the instrument, even when using my regular trumpet mouthpiece on the converter leadpipe. A lot of air was leaking, even at the low C and D on the picc. And i had trouble getting up to the high A and B that i can consistently hit on a larger trumpet. Does my embrochure need to be tighter, or is it a problem of air control?