I also have the small 18" dish mounted upside down on a low profile mount. I found the plans for the mount here over 10 years ago. It works out great. I also use the Dishpointer website and a sat finder meter powered by 2 9 volt batteries. Sometimes, though, I lock on to the wrong bird. Yesterday I purchased the 10 buck Dishpointer augmented reality app. With it I found that I was locking on to the 98 and not 101. Tweaked the setup a few degrees and done. Its neat how it shows the line of satellites on the screen with any obstacles that may be present. I have zero luck with compasses because it seems like the trailer throws it off.