Chuck, just curious. Why do you cut down a windshield and ride with it all the way up?
I used to put the stock screen on during the summer, but, then found myself moving it all the way up to stop the wind noise. Put back the CB (+6) and kept it in the 2nd or 3rd notch all the time.
And, yes, living in Phx is different (I grew up there). Wind in the desert is different than in humid parts of the country. The last thing you want is air blowing over the body. The 'stationary' air is dry enough to suck up all the moisture from your body. There is a reason desert dwelling peoples wear loose clothing that covers most of their body. More important is to have a LOT of water and at times just sprinkle yourself with some of it.