The combo of a 21" Cee Bailey windscreen and the WeeStrom hand guards work for me. I wish that I'd had them on when I rode down to the coast over the holidays. The difference is amazing. Now if I can get the Gerbings jacket and gloves, I'll be good down to at least the high teens.
Note the black rubber o-rings that we put in as spacers between the grip and the bar end weight. It gives it a clean look without binding on the throttle side. We had to get some slightly longer bolts to mount the guards with, but overall, it was a shoe-in. I highly recommend the Strom guards and the price is hard to beat too - about $55.
The shot below shows the clearance that is built into the Cee Bailey windscreen at full lock. I got the tallest model available - I'm 6'5", and the combo of the hand guards and the tall screen really give me a lot of protection from the wind. It seems that the wind flow skims the top of my helmet, but it's a lot quieter than before. It took about 6 days for the screen to arrive.
I wonder if any of the wind screen manufacturers do any wind tunnel tests on their products - as a kayaker, I know that water tends to eddy around behind rocks, and have learned to judge the type of eddy by the shape of the rocks that I'm coming up on. Wind acts much the same as water, with the screen acting as the rock in the water. I see some models of screens that seem to be designed more for looks than for effectiveness. A little time in a wind tunnel could result in good sales for some builder if they get it right.
The next shot has nothing to do with either wind screens, hand guards, or even the Vee, but damn, that's a cool bike! It's a project bike that my local dealer is building for the military - nearly all black with infrared lighting for night work. Extra quiet, it's a 250 designed for stealth travel in rough country. I like it!