Ok, I put the standard screen down to lowest setting and wore my Shoei Raid helmet (not my Arai Tour X3), the buffeting was reduced by quite alot.
Tomorrow I will try another run with the screen in same position riding the same route but with the Arai Tour X3 helmet on, that way we will see if the helmet is creating part of the problem.
Tomorrow I will try another run with the screen in same position riding the same route but with the Arai Tour X3 helmet on, that way we will see if the helmet is creating part of the problem.