I thought the DSS was circular, i may be wrong, but it seems like it was.
You are correct...I meant to say FSS not DSS. FSS is linear.
This weekend I had some time to experiment a bit further. I put a small pressure-treated wedge under the 72 LNB to place the skew to the proper angle. That threw off my horizontal spacing but after a little adjusting I was in business. It worked! Some further tweaking is probably in order but all three satellites are once again viewable.