I feel like most of the vibrations come from being so terribly off balance. A lightened piston can help this so much and makes these things a lot more fun to ride. Even a few grams lightened makes a world of a difference and it will help you crank out a couple hundred more rpms out of it. I think we need to step away from the mounting different ways to get rid of vibration and finding out why it vibrates so much in the first place. You can never balance a 1 cylinder engine, but you can make it better....