Richard- Downsides? Not really except that it pays to keep your collar buttoned up in summer in case something gets in there and stings although that hasn't happened to me yet. With both aeros up there is a fair bit of buffeting but with the drivers only I feel that there is less than with the screen on. I'm heading for six foot so one would expect to be clouted occasionally: falling acorns get you anyway. I love my aeros and I'll post todays pic for you now. Regards.
