Sorry for not being clear on the response, thread was clearly about a problem with a windscreen on a Harley Davidson , I having a similar model Dyna not Fatboy also experienced an undesirable operating conditions with a windscreen. I than removed the windscreen in my own garage and have not used the wind screen since 2014, and immediately (not 3 years latter ) purchased a quality set of goggles to wear ( not installed in place of a windscreen on the motorcycle ) protecting my eyes from the wind when wearing an open faced helmet (would be redundant with full face helmet)
Sorry for the incomprehensible response in the earlier post , I will not let it happen again !!!!!!