Hi Dave. One time I had some upper stack pads replaced in Berkeley when I lived in the Bay Area.I'm curious . . . how does one go about proving that any resonator, or lack thereof, has any effect? It seems to me that when one removes resonators (which mostly requires the old pads to be replaced), then re-installs pads and new resos, that process changes the whole horn to a point where it would be difficult to show what caused any improvement, deterioration, or maintenance of the status-quo. We all have our opinions (much like finish-matters discussions), but is there proof? DAVE
The guy saw that my mouthpiece was a 130/3 offset M Berg. He probably felt sorry for me.
Anyway he put in those fluted metal resonators ( can't remember the name of them ).
Sounded like lightning striking it was so bright.