I didn't see the need for the lower wings. I don't feel that much air on me with my legs tucked in.
If I want more air down low I put my feet on the highway bars.
Most of the air that bothers me comes from behind and I get some across my ears.
Without the trunk on the back I feel wind pushing on my back. Your sort of sitting in a vacuum.
I ware a half helmet most of the time.
If I were to ride in winter, which I don't. I would have all the deflectors I could.
Just my opinion.