I got a 90 mile ride in today, 30 of it at 70mph & buffeting was definitely improved.
I open my shield at that speed & my helmet was not moving at all.
As for motor temps, it's definitely improved my cooling, as it was 88° & higher humidity today & I pulled off the highway & idled for about 90 seconds & EITMS would always immediately kick on in the past & today I was sitting 20-30 seconds before it came on & that happen several times today.
I have them adjusted at about a 45° angle in relation to the ground.