I loved the stock shorty also. Suited me to get some wind in my face and the weather wasnt a problem. Then I took a trip down south. The bugs kept me blind. I had a Klockwerks installed for the trip back and have loved it since. Better for the stereo,fun watching the bug execute themselves at the top of the flip. I still get some wind(full helmet with the visor up and shades) but thats ok.
I ride with an HJC RPHA modular helmet. Stock shield pretty noisy above 55-60 made hearing stereo impossible. Added Memphis Shades Hot Wing extension now stereo is fine up to 80 or so.
I'm 5' 8" stock seat see over the shield and Hot Wing. Works for me. YMMV
On day-1 I switched to the Honda "tall" windshield P/N 08R70-MJG-670 (plus the vent) because I think it looks best on the F6B. I'm exactly 6.0ft. tall, and it also allows me to looks either above or below the top, which is perfect. I added two screws with OEM spacers in the empty mounting holes, for a total of five – not sure if that helps, but it can't hurt.
I love driving my convertible with the open top and the air conditioning at full blast on hot California days. I wish the F6B had air conditioning as well, but I suppose that might be just a bit impractical ...