My experience with the Cal Sci windscreen has been... well... horrible.
It sounded, from the web site, like they know what they were doing. Order the tinted one.
A few problems getting it mounted due to crappy well nuts. Finally took out the little brass dohickey, trimmed off the rubber part, and mounted with a regular nut. Used the same tightness as recommended in the instructions.
Thing shook like crazy.. even at 40mph. It developed a crack from the middle opening to a mount hole.
Got in touch with Cal Sci. Sent him pictures and videos of the flex in the windscreen. He made comment that other Rocket 3 windscreens had been cracking.
He sent a replacement (as per his "warranty" on the web site.
Asked him if I should use the same mounting technique (as he did not send replacement well nuts) and he said "Mount it however you like, but be careful. You only get one replacement". OoooKaaaayyyyy...
So, this time I tightened up the mounting screws a bit more.. and it didn't shake as much. Great!!
Went mabye a thousand miles, and then it cracked. Same place as the first one. Sent him a text asking for a refund on what I considered to be a defective product. Crickets..
Got a MadStad windscreen from a forum member here. Works great, looks good, doesn't shake much and hasn't cracked.
So.. in my opinion. Stay away from Cal Sci.