Oh we know what angle to put them, the problem is space and shade coverage. With one set of 4x20 and one 2x20 - the pool is only 33' long. The picture shown is taken at 7pm so the sun is from the west there but With only 14' left between the pool and the woods we will have the sun coming from what is the right side of the picture most of the day (morning from the top side of the pic) and some of that is shaded from the woods there and on the east (top of picture). The whole south side of the pool area is subject to some periodic shade until the sun is far west and then that is only briefly shade free. Limited space and exposure areas - lots of panels. Suggestions?

I thought about maybe moving the pool a bit more southerly and installing some kind of elevated rack system (higher than the pool rail top) in between the pine trees and the north side of the pool at 45 deg facing South? If we did that, should they then be installed end to end? (= 40+ feet of panels)