I had the valve adjustment done at 20,000 miles. Reason is I had it done the first time at 8,000 miles as per the old service intervals, and then waited 12,000 miles for the 2nd time due to the changes so that's why it was at 20,000. Chain and Sprockets I had done at the same time as the last valve adjustment so I'm good there. Only thing I'm thinking of adding to your list is to lube the headstock bearings. Has anybody done this? Oh, and I'll also check all the cables for wear.