Hello everyone,
About 2 months ago I got some MAW Valves for my 6/4 Thunderbird and the horn plays great! However I do have a concern regarding my 2nd valve. It feels like I’m “losing power” so to speak when I play middle B natural it feels to me like I’m playing while having my spit valve open if that makes sense. What could cause this? I took my horn to the shop to have the valves installed. Every other note plays great except for that B natural.