As the title says, most windshield on C14 will shake some at different speeds and in different positions, but some are worse than others. Which one shakes the least in your experience? The stock 10+ screen shakes quite bit. V Stream has some shake in it too, and for some reason more in partially lowered than in fully extended position. V STream is about 3 inches taller in fully extended position than the stock 10+ screen. I think the windshield mounting brackets on the C14 are partially to blame for excessive windshield shake.