I don’t think I can go thicker than the 2.2mm that the Lewis is, but I’m thinking to a different rotor design would also deliver a different resonant frequency.
While changing back to the 200 rotor it looked like the 220 rotor
might not have been sitting absolutely flush on the hub. I block sanded the hub surface to make sure the 200 rotor was mated 100%.
Did a quick bed-in around the parking lot, and there was no noise. I’m going to do a quick test ride tomorrow morning at Dreamy Draw/Phoenix Mountain Preserve before work, mostly to test a different suspension setup before I head up to Sedona this weekend. I’ll see if the rear brake stops complaining.