Yet you ride with the screen all the way down a good bit of the time?
Not picking on you personally Noel! Just bringing up a point. Just like those that swear Michelin tires are the very best in the rain, yet cannot explain how they came to that conclusion, there are those that claim polycarbonate screens are the only thing safe to ride behind yet ride with the screen down. Or if really taking a chance riding a bike without a windshield!!!!!
You can't pick on me my friend. I use the screen control frequently. Around town if it's not cold I'll put it down all the way. I love the fine control the electric screen offers. When zipping thru the twisties I like the feel of clear air it helps me sense speed and I just like the feel of it when the temps aren't cold. I would say it's up about 3/4 75% of the time, down fully 10%, up 2" from full 15%. I think the Michelin wet performance v poly v acrylic analogy is goofy. Polycarbonate is much more impact resistant than acrylic ever will be. From Acme Plastics:
"Acrylic has roughly 17 times the impact resistance [v glass]. Polycarbonate is the stronger material at 250 times the impact resistance of standard glass.
Polycarbonate offers much more resilience than acrylic, making it ideal for highly demanding applications like bullet-resistant windows. Acrylic has a high gloss finish and is more transparent, making it ideal for display cases. Acrylic is also easier to crack, while polycarbonate is easier to scratch."
From Motorcyclistonline.com, Jerry Smith:
October 6, 2014
The two most common plastics used to make windshields are acrylic, which goes by the trade name Lucite or Plexiglas, and polycarbonate, also known as Lexan. Despite the similar-sounding names they’re different enough to justify knowing more about them before you pick a windshield.
Acrylic is the shinier of the two and the least expensive, but it cracks or shatters easily on impact compared to polycarbonate. In any application where the windshield is meant to protect you from flying debris or where it's exposed to the same, acrylic's lower cost is offset by the likelihood of it exploding into pointy shards if it's hit hard. On the upside it's more scratch resistant than polycarbonate, so it's easier to keep looking new.
Polycarbonate is a lot tougher than acrylic. While acrylic is about eight times stronger than untempered glass, polycarbonate is about 200 times stronger. It's used in DOT-approved helmet face shields, as well as racecar windows and machine-tool safety shields. Laminated layers of polycarbonate can even be used to stop bullets, though you don't want to annoy anyone that much if all you have between you and a high-caliber argument is a motorcycle windshield. Polycarbonate is easier to scratch, but windshield manufacturers get around this by adding a protective layer of hard-coating.
Hard-coated polycarbonate is pretty much the current state of the windshield manufacturer's art. The hard-coating is getting better, too, according to National Cycle, which says its proprietary Quantum process is 10 times more scratch resistant than the original hard-coated polycarbonate and 30 times more than acrylic.
Those pictographs say, “Wait! Read MC Garage before cleaning your windshield.” A little care when cleaning helps keep your screen scratch free, no matter what material it’s made from.
About the only thing acrylic has going for it is low cost, so unless you’re fitting a decorative fly screen to your vintage bike or adding wind deflectors to your handlebar, polycarbonate is the way to go. Its superior impact and scratch resistance is worth the extra money, and the added layer of protection from debris is priceless."
I differ from others who prefer your screen because for starters I use really effective ear plugs so shutting off all wind noise is not necessary. I get the fully quiet ride w/ the screen all the way up, but normally there is a little wind noise anyway. Clearly if you must have maximum elimination of wind noise the QR will be the best choice for you. I prefer the strength and increased air flow for warm weather riding that the OEM screen affords. For as many complaints about wind noise w/ the OEM I read similar complaints the QR can take too much air flow away so is not optimal for those seeking more air flow in warm temps.