I noticed a lot of newer bikes have the screen pushed out at the bottom. Many also have vents cut in down there.
I had a 2 point mount system (Fast Eddy) on my America which made adjusting easy.
Where I wound up was with the screen pushed out to the very front of the headlight and pushed up 1 1/2 inches above the headlight. The angle turned out to almost exactly match the forks.
Helmet rattleing buffeting is gone. Wind noise is down but not gone. The air hits the top 1/3 of my helmet but it is clean air. There is just a little puff of air that hits my tummy.
This also works on my CB1100. My (2016) CB500X came stock with the bottom pushed out and up and it has vents also and it is fine.
Mike