My Touring always had that high-speed weave, I tried a bunch of things, suspected the windshield, I finally took the bags off for a while, it seemed to disappear, but being older and wiser, I didn't push it like I used to. Good to 130 mph, anyway
Weird, must be a British thing, I probably haven't taken the key out of the ignition a half dozen times in 15 years, not even when I go into Walmart. I've never heard of anyone I know getting a bike stolen.