My error, read over that somehow. Perhaps a compound change is in order.
Similar but different, I bead blasted the rotor surface area on my FZ1 rotors and they were hella loud until I got a layer of pad material back on them.
And after thinking a bit, I recall some Ferodo race / track day pads that were overly loud on my previous 1000RR track bike. Performance was OK, just more noise than other pads before. Swapped them for another brand ( DP ) and were almost whisper quiet comparatively.