I have 2, 9' x 3' panels on black plywood that run east/west the long way. In an attempt to eeeek out every 1/10th of a degree of temp I can here in the mile-hi city, which do you think would get me more: proping the long edge up to angle south to the sun, or proping up the short end to face east in the am and west after noon as the sun passes? Currently, they are mostly flat on the ground north/south and I prop up the west end about a foot torward the sun in the am and switch it the other way after noon.

Yes, it's a big pain in the patoozie, but at least I can still get my Florida born behind in the water. Hey, a degree is a degree!

Shelley