I agree, JMo. I think there's a good reason Yamaha designed the braking system the way they did. I'm sure they didn't go to the expense of a twin-disc system for the hell of it.

While it's true that a twin-disc setup is going to affect suspension control in heavy corrugations, imo a fork oil change to a grade heavier will help at least a little.

Again imo, there are few bikes with cost-effective (ie basic, even adjustable) suspension that are happy in those conditions. If the corrugations are serious and prolonged over many kilometres, only quality suspension will cope without complaint. Mucking about with disc limitation and so on suggests that the wrong bike has been bought. Much better to spend money improving the standard suspension than to change the configuration of the bike. The latter is only masking the real issue.

That's my 2 cents worth