I have tried my stock and puig screens in all the height positions and in all honesty I much prefer to ride without a screen at all unless I'm on longer rides. Also, I have a properly fitting helmet so that is not the issue here.
Item Name: Kawasaki Versys 2006 2007 2008 2009 Powerbronze Flip Touring Windshield
Item Number: Light Tint
Price: $89.95 - save $10 $79.95 (and came up FREE shipping to my area code)
Touring Windshield with extra flip at the top edge - ultimate wind protection - shield measures 14 inches tall total