Thats the same screen that someone had kindly fitted to my bike. Despite being a MK1 so inherently more vibey, (especially at 4-5000 revs) the screen shaking hasn't been an issue. Nearly every other bit of me feels the vibes so maybe my rattling teeth & buzzing fairings mask the screen shake, though I am wondering what kind of rubber grommetry came with it?
Ahha just checked the downloads from your link and see a totally different mounting system & brackets on Mk2. mine has about 30mm rubber at the bottom and 10mm at the top. Could you squeeze more rubber between the bracket and the screen?