I went through a couple for my RS-S. I'm using the "Badgershield" right now, which offers a second, flip-up portion that you have to screw-in and tucks when not in use. It's wider and higher than OEM but not as silly looking as the "touring BRP" one. Changing out to the higher-option it comes with requires you pull-over. There's other names for this screen, such as ShowChrome, but I got the "Badger Shield" one because I liked the name better. Once installed, three twist-knobs is all that's required to put back in-place to either option, though I found the allen-screws must be held in-place during this operation with fingertips.
http://www.bigbikeparts.com/catalog.../20-121_1_Adjustable Can Am RS Windshield.jpg
http://www.ebay.com/itm/Can-Am-Spyd...Parts_Accessories&hash=item4617363147&vxp=mtr
I found the other offerings tended to be very H.R.Giger of
Alien design like the queen Alien from the film
Aliens (1986) and it was too crazy. The Badger Shield (when down) keeps the OEM "look" in my opinion and provides decent protection. You're still hit by the wind but it's more like a double-bubble sport-bike wind-feel if that makes sense. I have a "db" on my Honda CBR 600RR/A and it has the same feel. When extended, it does a good job deflecting wind but there's a bit more buffeting
sound around the upper helmet area as if the wind is trying to grab at you but misses its slipping wind-fingers at you. The clear upper-portion lends to an invisible portion that does not detract from the OEM look, though I noticed it's very slightly tinted as well.
All-in-all, after trying a few, I found this one to be a good compromise between function and form without distorting the Can-Am design and makes 90+ mph riding less of a panic-attack and you can concentrate more on other matters than being beat-up.
Note* My RS-S 2013 screen used for 1 week is for sale with the bright-red/orange decal still in-place if anyone's interested.