Would like to buy a set for my Greenhoe bass trombone.

Thanks, Bob

Still looking?

Wait, these exist, if they have them for bass trombone, conn 112 to be specific, I want some!!!!

[quote="trombonedemon"]Wait, these exist, if they have them for bass trombone, conn 112 to be specific, I want some!!!![/quote]

Can I ask a dumb question?

Why?

Have you taken off the valve cap? Is there anything there to show off? It's just an unfinished brass disk with a rotating piece in the middle when I take mine off. I don't see any reason for it to be transparent.

Now I've heard that heavyweight valve caps change the sound. I tried this by putting automobile fender washers under the cap of mine. I didn't like the effect. But to each his own.

I had a delrin valve cap made for me that I quite like. It's almost purely aesthetic. The first is that it is pretty slick looking. The less obvious is that it's way easier to clean than brass. I always have valve covers get very badly tarnished where it touches my neck in a weird parabloic shape... the cap I made is flat on top (no "nipple" sticking out). The combination of those two factors makes is super easy to clean.

It is very slightly less cold if I haven't been playing it too but the difference is way more subtle than a lexan/delrin rim on a mouthpiece.

The final advantage for me is likely entirely placebo but I do notice a bit more dexterity to my playing. Actually, that might have less to do (if anything at all) with the sound coming out of the bell and just change the way that the sympathetic vibrations get to my inner ear. Or it could be 105% placebo. But I'd use mine even if that wasn't the case because of the stuff above!

The Lexan caps change the response and sound on a Greenhoe horn.

[quote="GBP"]The Lexan caps change the response and sound on a Greenhoe horn.[/quote]

This is very accurate.