I received the mouthpiece on Friday and was able to put in about 2 hours with it. I had on hand 5 different manufacturers of reeds in the 2 ½ range. They all played well, with the Hemke and Rico Grand concert being the best. Hemke was #1 with the Rico a very close #2 followed in #3 was a Vandoren Java with a dark tone. This is the first time I was able to hit a concert high F without straining. Low notes were very easy, and I am able to play softly. That never happened before. Best soprano mouthpiece I have ever played. I believe it will only get better as I become adapted to the piece. I am completely satisfied with it. Thank you very much.