However after putting your mouthpiece in, the problems were gone. I am blown away by the ease of projection while maintaining a robust Germanic sound in all registers. I couldn't take my eyes off of it. It seats perfectly in the receiver of my Calicchio where other mouthpieces have bottomed out and wobbled. The sound of my GR Mouthpiece is as big as house compared to my old mouthpiece.
Attacks are clean as whistle with quicker starts and better octave slurs.
I consider my GR Mouthpiece overwhelmingly superior to anything else I've tried. The rim is very comfortable, and I did not feel any initial need of adjusting anything when playing. The tone is absolutely beautiful and rich in all registers at all dynamics. I feel the sound is more focused and clear. Easter Saturday Night Vigil and Sunday morning performances with the brass group on the 65L were so much more fun than in the past, and I used the 65MX on the C trumpet as well as on the Bb for my jazz gig on Thursday and Friday night.