My first horn was a used Yamaha YTR2320.
Served me well for several years until I upgraded to a Xeno. The 2320 was still used as a bad weather marching horn.
Hello, are you me?
I started on the music school's rental YTR-2320 which had trouble with the third valve sticking. Probably impact damage on the third slide. After a couple years, my parents sprung for a used identical trumpet (minus the sticky valve).
I still have that second horn but I'm considering selling it since it is still a decent enough player and I don't do as many marching gigs (or drunk gigs for that part) as I used to, and anyway I mostly play some kind of lower brass when marching, these days.