one day I stepped to the side of a dish 500 and the signals must of been bouncing off my body. big increase in signal strength. I was standing to the side of a dish 500 on a tripod. I was amazed I could be a signal reflector
Just for the heck of it you might try attaching some alunimum foil to a heavy piece of cardboad or plywood and experiment to try to increase signal strength on the transponders you want. if it doesnt work you lost nothing but it MIGHT help
Interesting... I guess that I could try it just to see what happens, although I don't think I would want to use something highly reflective (unless I want to buy another LNB after mine gets torched).