As for trying what was outlined in the first post of this thread...
Today I aligned my dish using that procedure. It seemed like there was a bigger window of signal on my extreme west or east sats. I found that the window of signal was much narrower and the dish alignment was more accurate (and quicker) when using USALS on my most southern satellite.
That sounds like it tightened up the precision on your southern sat, but made the further extreme sats more easily detectable. Is that what you were infering? Does it seem as though it is an improvement, or just that it is different?