Cleaned up and sprayed my old 39" WSI Ku dish which turned out great but had a question before reassembly as I didn't take any pictures. The rear mount that attaches to the dish isn't perfectly symmetric so is there an "up" or "down side for attaching to reflector? There is small metal lip on one end and a triangle on the sides. I don't think it matters but just thought I'd inquire if anyone still had one setup. Anyone still have the manual? LOL. RIP WSI. See attached picture.