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I am a low brass player starting college next year. My mouthpiece story is similar to many I am sure. I have played many and truly liked few. I play mainly euphonium and trombone but some tuba. Tuba mouthpieces I am good with. I like my bach 22. Euphonium and Trombone are different stories however. I started on a bach 5gs small shank and liked it until I lost it. Now I play on a SM4BU (Steven Mead 4 by Denis Wick small shank) and whatever I can get my hands on with trombone. I really liked my brother's 47a by buescher small shank for trombone but he won't part with it.

I'm looking for mouthpiece suggestions for a trombone mouthpiece that is available in small and large shanks. I need it to be easy to be medium sized, maybe a bit on the large side and with a gold plated option -- once you go gold you never go back.I like narrow flat rims with a sharp edge, large throat, deep cup, bowl shaped.

I don't have any place to try out a large number of mouthpieces where I live so I was hoping for some help here.

thanks!
-Jared