Just installed the calsci on my 2019 gs. It is the 3rd aftermarket I've tried and it will be the last. Does just what I was looking for. Buffeting is gone and very quiet now. If anyone is looking for a touratech or a vstream I will let them go on the cheap plus shipping. Touratech is pretty good but the quality is behind the others. I inquired with them about flaws (dimples and pimples) in it and their answer was no one can make a windshield without flaws. They've obviously only ever used their own as it's the only one out of about 8 I've had over the years (all different makes) where I noticed anything like that. I kept it because it was pretty darn good but I'm one that wants to keep trying to improve things so I got the calsci. The vstream was causing some buffeting over 70 mph for me. Under that was fine but it was also a bit too tall for my liking even at the lowest setting.