Bikky, do you wear earplugs when riding longer distances? Regardless of what screen you end up using, earplugs are a must if you want to maintain your hearing. Riding long days without them will cause irreversible damage.
I tried something similar Powerbronze offered in the prehistoric days of the Versys. It didn't work for me. It brought the air just to helmet level, causing more noise and turbulence (FWIW, I'm 5'11").
As you can see in the picture, I even tried it with a different angle of attack (I made custom spacers for it)
Obviously, this is a very personal issue. Rob, who is about 6'2" too, rides with various iterations of "barn-doors" and swears by them. Every time I get on one of his bikes I swear at them...
I prefer a smaller screen that brings the air to chest level. That way you have clean, relatively quiet air around the helmet. It does put more pressure on you when traveling at highway speeds and until you get used to it, it will probably be a little more tiring on long days.
Here are Rob's Mk2 with a CalSci barn door vs. the Mk1 with the stock screen, upside-down:
And V1K with a different barn-door vs. Mk1:
OEM windshield, upside-down, in the middle or lowest position, works best for me: