Adams E3 0.60 Sterling bell - Prototype top sprung valves
Concord Band
Winchendon Winds
Townsend Military Band
As an aside and probably as more of a reply to Art, I've found that on the Yamaha's (and the Chinese clones) 4th Valve produces a remarkably in-tune Middle C, way better than 1 or 1 and 3.
Adams E3 0.6 with SS Bell
K&G 3.5D
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Founder and Solo Euphonium
San Francisco Brass Band
This is exactly the reason I had this one built; flimsy and you have to use your thumb in what for me is awkward.
Left index for 4th, remaining for trigger.
You just can't break it, and adjustment is easy.
Dennis
Here's a WWBW video of the Yamaha Booth at NAMM2018 showing the Yamaha Trigger in action.
https://www.youtube.com/watch?v=gWtGSHIPPcg
Adams E3 0.6 with SS Bell
K&G 3.5D
---------------------------------
Founder and Solo Euphonium
San Francisco Brass Band