Well I have the new Biondi windshield on and so far I think its great. A lot less wind noise and a pleasure to ride. I'm 5'10" and I can see right over the top with no problem. As far as the Dr. pulley 14 gr sliders, I expected a little better performance. The 0 to 50 MPH is a little quicker, but the 50 to 70 is not what it was before. I thought I didn't put them in correctly, so I took it apart again to check, installed like they're supposed to be. So since I don't usually go much over 60 mph, I guess they'll stay in. Good riding guys....