Improving a Mouthpiece: Do's and Dont's

Jemmie Robertson, Associate Professor at University of Florida, visited recently to build a replacement mouthpiece off of his old mouthpiece that he's played on for a long time. The newer versions of his old mouthpiece were all different, so we got the mouthpiece scanned and then reproduced it and fixed a few trouble spots.
The end results we will let Jemmie speak for in the video.
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[@trombonetimo]

The trombone on the CD case gives me anxiety!!!

[@UCVehemoth]

It’s not on the case, it’s on a proper trombone stand with a chrome finish. Need to look carefully.

[@BrianJohnstonTrombone]

@@UCVehemothI think it was a joke…

[@ieattoomanyclementines2372]

You should check out that CD, Timo, at least one of the composers on it subscribes to your channel ;) ;)

[@Sherman1fan]

Was the old mouthpiece worn down over use (besides the different reamer contact points)? Do all mouthpieces (with normal use, beside changes in the player's age, etc.) change over the years?

[@griegomouthpieces4760]

The shank had some damage and was wearing very inconsistently. The piece was over 20 years old and was also wobbling in the receiver which always slows down response.

[@Sherman1fan]

Thanks for the information!@@griegomouthpieces4760