I mounted a Laminar Lip on my stock F8 screen like in the pic above, but moved it up a couple of inches which was about as high as I could get it. I'm 6'2" with a 34" inseam. The results are mixed.
It did move the direct air flow off my chest and shoulders, it's easier to stay warm riding, and I don't feel like I'm being pushed off the bike at higher speeds. But now there is some buffeting hitting my upper neck and helmet around the ears. Not enough to toss the Lip, but it is there.
I might try moving the Lip down a couple of inches and see if that helps, but since you're taller it might be just right for you. For warm weather and/or off-roading I can pop the Lip off and I'm back with the stock shield.