I just completed my second valve clearance check at just under 53,000 miles. The second time through took less than half the time, about 2 hours, that my first attempt at 26,000 took just to get to the point that the valve cover was off and I could get to point of checking the clearance. The intakes are all within spec .008" fits - .009" doesn't. The spec in the book is .006" to .009". However, all of the exhausts are just a hair tight. A .006" fits snuggly but a .007" doesn't. The spec in the book for the exhaust is .007" to .010". What's your opinion on whether .001" of an inch tight is likely to cause any issues? The first time at 26K all were within spec and no adjustment was required. It seems like a lot of extra work for measly .001". Especially since removing the cam to change shims involves a lot more risk to screw something up than just doing the check does. Plus it means the bike will be down for several days to order the correct shims as the dealers don't seem to have an assortment on hand. I might suffer withdrawal you know.