spurn

Now that spring is here and I'm driving with the top down again I don't notice any real benefit to using the rear windshield--I'm wondering if mine doesn't rise up far enough--it doesn't reach the top of my roll bars; is this normal?

TP

'tis normal. Best results are when you are driving at freeway speeds.

DRUMS100

Better results if you leave windows up as well. (which I hate doing!)

MarTTy

It helps when it is cold and you leave the side windows up and the heat on.

rollerskate

Yet another reason to drive fast - oh boy!! :-)