Hi, I am considering adding a 100w solar panel to the top of a bumper swingout I plan to build this spring. The rest of the swingout will contain a toolbox, trasharoo etc... I could build it to have an adjustable angle. But that seems like a week point/ massive pain in the butt. So is there an optimal angle that the solar panel should point in relation to horizontal? If pointing straight up is 0 degrees what would be the best angle to orient the panel considering that i can park or swing the carrier out any direction I want? I do the majority of my camping in Wyoming and spread out down into Utah, Idaho, up into Montana mainly April-October. Thank you for any opinion or links I should read.