- YEP-321
- inquisitive (yet not particularly thoughtful) young scholars
(car key and fob for size reference)



My guess is that this is a drain for tears shed because everything is so hard and unfair for them, like having to practice to be good, having to speak with adults on occasion, and, you know, stuff…
This is the one that always gets torn up from the first casing to the mouthpipe.
Never saw those. Isn't he someone who worked for Badger?
Ed Strege. He the owner of Badger State. They used to (maybe still do) sell a knuckle patch with attached flange like in your picture for use on rotary valves, especially F-attachment trombones when young scholars tear them up.
It was terrible, and some of it is still somewhat terrible but it's going to play. I got all the slides aligned pretty well. Other than the third slide, and I believe I would just say that I got the third one working. It gets narrower at the top probably by a good bit.. maybe even 15/1000ths or so... but the large 90° knuckle that comes out of that casing and feeds that tube is karate chopped (folded on the underside) and patched, I just wasn't willing to dig into that...certainly not for the allotted budget.