As the ambient air temperature is very high here, even at night, I prefer to have the deflector pushed back so that the cabin is more "swirly" so that it helps cool you down more.

How do you have yours?

 

Up!

 

I was thinking.. you know he tall ones which come to top of head rests. Well with them on how do you clean the tray behind? Mine gets very dusty - imagine it is near impossible getting to it then?

Oh, up btw. Though I am still waiting for my major havocs. looking forward to finding out how much diff they make

 

Lots! Especially if you're tall, when it stops the back of your neck going numb!