It probably didn't help that you shot the footage using Canon's Sports Mode, which implies a much-higher-than-normal shutter speed, which in turn acentuates the phenomenon of judder.
I shot in several modes, even did a factory reset to be sure, nothing really made any difference, my understanding was that Sports mode would use a higher shutter speed and my thinking is that it would HELP the effect, couldn't say for sure.
If anyone could play the file and verify it looks "good" or "bad" would help me narrow things down.
Oh, I did indeed play the file. It looks like it's shot at 30p with a fast shutter, making the judder even more noticeable on pans.
I went through a variety of settings and bitrates for more test shots, and each had no or minimal affect on PF footage. Prominent Judder. Keeping all the same settings, I would then change over to 60i. Playback for 60i was well, perfect, but again only through Windows Media Player.
It's something that I now notice instantly when viewing video, when you really look for this effect, you can see it in many videos, it's probably chaulked up to "there's something off about this video but I can't quite say what", well for me it's the judder when panning in Progressive mode.
The sample videos I shot just highlight it to the point where it's impossible to miss. It really is very distracting and takes away from the overall quality. Outputting to 59.94 eliminates the problem.