I rode to Anacortez for the annual Oyster Run on the weekend. Me and 5000 mostly Harley riders. I respect the fact that most of them like to strictly obey the speed limit, but I like to go just a tiny bit faster than that.
On the way home, (Chuckanut drive?) I was stuck behind three Harley guys, waiting for a safe passing opportunity. As soon as the road straightened up, I dropped a gear, put my signal on, and started moving out. Just before I moved into the other lane, I glanced over my shoulder, and saw a Harley rider RIGHT BESIDE ME! He was passing me only 12 inches away from the centre line, and I was 6 inches away from the centre line myself at the time. A few more inches, and we would have been slamming into each other! Considering he and his girlfriend on the back were only wearing T-shirts and beanies, it wouldn't have been pretty if we'd gone down.
Moral of the story: Just because your the only sportbike in a sea of Harleys, doesn't mean your going to be the only one passing. Shoulder check before every pass, because one day it might save your ass (and someone else's too).