I just bought a used horn a Liberty by Bach, and it came with 2 mouthpieces, a Bach 5C and a UMI 7E, I can find specs on the Bach, but I can't find any info on the UMI, any info from anybody??? Thanks, I'm also tring to find out what type of mouthpiece would be best for me?? I love jazz and hope to get into a local Jazz band soon. I know that getting the right mouthpiece is kinda a trial and error process, but what can I do to narrow it down to what would be best for me????