As for the other remarks. Yes when doing rapid transitions as in 140>50 the brakes are heavily used along with down shifting to be in proper gear. I have been amazed at how hard you can brake and have it feel like your eyes are bulging out in front. GRIN.
For riding in the mountains (or just places where you are changing speeds up and down very frequently) I am usually above 1/2 to rev limit (9400 rpms and K12RS has not flywheel) in riding. Roll off throttle at 8000 rpms and the bike slows and you roll on throttle as you settle into the beginning of turn. Very little brake. If needing more slowing yes use the front. Same if bike is at 5000, not so much response if at 2800.
For most planned stops coming off Interstate, up ramp, a few down shifts brings the bike to below 25 easily. I do touch brakes lightly mainly for flashing rear brake light.
All that to say, yeah I use brakes, yes I use revs. very very seldom use rear brake alone. yes check pads as no early warning system on K12RS. Wear pattern remains constant on rear at 15k>18k. Yes I think that is too often. It is what it is however.
Life is grand and varied and filled with a multitude of discussions and opinions. Isn't it great?