I'm having some troubles with these damn things. Can someone give me some guidelines or some sort of specs I can go off of? When I try to lower them, if I lower them too much, not to the end either, the little hinge on the bracket slips off of the aiming screw. Its very frustrating but if I don't need to go that low it would be nice. At night though, I don't get a good beam pattern in front of me on the ground, more just forward. Please someone help! They work great but they suck as I can't get them aimed!!!!!