I'm 5'10", and have installed the Givi windscreen. It's ~4" or so taller than stock, and has a lip at the top. Wind hits the top of my helmet, but not the visor. Wind flow is very smooth, but loud (which may be how it works with my helmet). It is a big improvement over stock. If I were to buy again, I would try the MRA vario screen first. Only reason is that the Givi takes too much wind away when it is hot. You might also try the Suzuki accessory screen, since it is much less expensive than the other options.