I've done multipler valve adjustments on multiple pre 2010 GS bikes. My 2011 GSA was good to go at 11k when I had the dealer do it. Now at 22k I'm on it myself. However, I'm not finding much info on the process. I'm not excited about finding "spheres" or "shims" that I'm not even sure I need let alone the exact size. What is your experience in the real world? Who needed to re-shim their valves at 24k? Any pictorial you would guide me to other than... http://sanjosebmw.smugmug.com/Other/Tech-pictures/10976964_bHf66#!p=1&n=10 ? I am doing the COBDR in one month and am tempted to just leave the valve cover as is and don't mess with them. I appreciate your counsel.