Ok, total noob at modding here.
I tried to do this mod today, putting 20mm H&Rs on the rear. I started with my rear right wheel. I had no problems with the removal and all, but when I got to the point where I'm putting back the brake assembly, I got stuck - the brake pads came close, leaving only about a 2mm gap, not enough for the whole assembly to fit on the rotor again.
Has anyone run into this issue before, and how did you fix it? Anything I can do to have them move apart?