Hi Lloyd, I have an R18B coming shortly, I am the same height as you, do you find the wind goes over your helmet or is it still coming straight at your face? From your pictures, it doesn't seem to have that pronounce of a flip at the top as some of their other windshields.
Sadly, I live in northeast Ohio. I have yet to test the new windshield on the highway as of yet. But from past experience I have no doubt that it should be effective. I'll try and update when it ever warms up here in Ohio.
There is a slight flip and it does work very well. I can see about two inches over the shield and the air flow still goes over my head. Very happy so far.