The magic of dishpointer.com is that you can enter in a location of "pinegrove campground, wi" and it will point you just east of the beach on Kroening Lake. From there you can drag the pointer to your dish location.The 54166 is from Shawano - about 13 miles East. The zip I used is for Leopolis - only 1 mile away.
If changing the tilt doesn't change the reception, it is likely that you're seeing 101W through the 110W feed horn. With the Phase III, you start with 110W and then adjust the tilt to get 101W and 119W to come in.It does not look like the skew setting has anything to do with the 101 signal - no matter what the skew, I still get the same 101 strength ?
You may benefit from the foil method of covering the easternmost feed horns with foil or a heavy rag to prevent signal from getting to them.