I installed the adjustable MCL footpeg lowering brackets on my 2010 NT700VAA, and adjusted them to the 1 1/2" lower position. HOWEVER, the orientation between the footpegs and pedals (gear and brake) was now very uncomfortable. The gear shift pedal was easy to remove, adjust downward, and reinstall--literally a 5 minute task.
To adjust the brake pedal, I needed to remove the seat, the right side panel, and then loosen, but not remove, the "right step holder" (pg. 17-28 of the Service Manual). The Service Manual shows two bolts to remove the right step holder. Actually, you need to remove four bolts--one of which has a nut on the other side. One of the bolts is inside the luggage compartment. I don't know how one could do this adjustment without removing all four bolts holding the right step holder. This allowed access to the backside of the step holder, i.e., access to the rear brake spring switch.
To move the brake pedal down, I moved the (lower) locking nut (12 mm) up the threaded, master cylinder piston about 1/4" and then screwed the piston shaft into the "lower joint" (pg 17-39) by turning the upper nut (10 mm) of the piston clockwise, and then re-tightened the locking nut. This moved the brake pedal down, but also engaged the rear brake light switch.
Now, I had to adjust the rear brake light switch; I disconnected the switch spring (pg. 17-39) from the brake pedal and then adjusted the position of the switch by simply unscrewing a plastic, knurled nut on the top of the switch. Reconnected the spring to the pedal and verified that the brake light was no longer engaged--without depressing the brake pedal. Pedal to footpeg orientation is now OK. I had to do this adjustment by lying on my back.
E-mail me if you want to discuss this procedure in more detail.
Tom