I just got a new Shark Evo 3 helmet with the full face on the highway I actually can hear the radio better at speed and the buffeting that feel with my open face helmet doesnt become an issue till I am over 75 MPH. It is also nice to be able to flip the helmet back to a open face helmet.

This has changed my option as now I feel I can probably go with a shorter windshield, Maybe only 11'' as the stock on does the job with a full face helmet on the highway comfortably all the way to 75.

Just thought some of you would find this helpfull

Who knew my face was so not aerodynamic