[Saint aka ML]

That is a result so now to the elephant in room what did they mean by this?

"fluctuation of brake effort" per MOT

Of course you fluctuate your brake effort. You apply brakes to slow down, stop, brake in emergency all have different brake efforts but also you may start by applying lightly to apply more to then decide nope lightly is ok.

I often brake a bit to then have a car slam on brakes so I do same to then see that I can either go around or car starts going. Never in my life had warped discs.