I found myself having to shift "pigeon-toed" because the Buell pegs move your feet outward a little and the shifter becomes too short as well as too high. Unless I shifted my toes inward before upshifting, it hurt my big toe. I adjusted it downward to handle that part but modified it as follows to compensate for the shortness.
I removed the lever and took it to a machine shop. They removed the rubber covering and cut off the "nail head" on the end. They then drilled a hole the same size as the part of the lever that the rubber was on through a 3" piece of 1/2" aluminum rod, slid it over the lever and welded it in place. Total cost = $22.00.
I then went to Home Depot and bought some 5/8" (or was it 3/4"?) clear plastic tubing, which has an inside diameter of 1/2" (that's the important part). I cut off a 3" piece, put some adhesive on the inside of it and slid it over the new lever as a replacement for the rubber on the original one. Reinstalling the lever assembly completed the job.
Now the lever protrudes outward far enough to match the pegs and the plastic tubing assures that your shoes will not be discolored by the bare aluminum (which leaves black marks on leather or vinyl). For some reason, all I had to do with the brake pedal was lower it; I guess because we only press down on it, its length is not a comfort issue.
I have a photo of my finished shifter I could email to anyone who needs to see what I described.
Ed