I/S Windscreen side visor

[NEHI]

      I'm thinking about buying the Honda windscreen side visor for my I/S. Has anyone had experence with them, fit, quality and do they work. I'm taking a trip on the Valk this summer from Las Vegas to the Grand canyon through Utah to Yellowstone and back to Florida. Anything I can do to keep the wind buffiting at a minimum will be helpful.
   Dean...

[Kingbee]

I have them on 3 bikes & like them.  Fit is OK, hardware is great.  The plexi parts, however, don't have that hardened surface layer like the windshield, so they can scratch very easily.  I take them off each year to buff them out.......