And I read somebody laid the bike on its right side and dumped lead shot down into the stock handlebars.
I fixed mine the hard way: I slid the bike across the pavement for about 30 feet. It helped me decide to replace the stock handle bars with ProTaper bars. Although the vibration is still there I can at least tell the difference between a Cop and a Camry now.
Bar-end mirrors are a good cheap solution too. Mine are clear as crystal no matter what revs.
If you search for "Mirror Vibration" on the forum there is more info on the methods I described.
the kawasaki z1000 mirrors vibrate less than the stockers, are wider, and look way better. I tried adding caulk inside my left mirror...helped a little...if you try this, use stick on wheel weights that you can adjust till you get the right weight, then you can transfer the correct weight of caulk inside the mirror.