I have a '08 FXSTC. I bought the quick-detach windshield from HD when I bought my bike. The angle of the WS caused a lot of head buffeting at speeds over 60mph. I altered the ws angle by installing some homemade extensions for the lower QD brackets. This moved the top of my ws back about 2.5-3" (and lwered it about 2"). The newer angle eliminated the buffeting at speeds up to 80mph. All in all, I am quite happy using this windshield, and I can take it off in about 30 seconds on short rides... Good luck on whatever windshield you select for your bike.
Remember, Ride Safe...