Haven't played sax in 19 years (since graduating college). I have a 1954 Buescher Aristocrat which is in pretty shabby shape. I also played with a Selmer Soloist D mouthpiece. I never really cared how good a horn I had; I just knew that I always had a better tone than the player next to me for some reason. Now, my 11 yr. old son has started to play and I am interested in quality al the sudden. Can anyone tell me how good a mouthpiece I have? Also, what is the difference between the F, C and D models of the Soloist? Thanks!!!