So here's where I'm at now.....
Have inadequate width, and horizontal foldover. I have the chassis out on my bench flipped on its side, and the picture tube held in a makeshift test jig. Width control does squat.
This pic is about the best I can get it just by turning the synchro-lock and horizontal hold. Getting the feeling that what I was doing with the synchro-lock in an earlier post wasn't the problem....I think I might have taken something else out with that spark show.
Now what
HAS changed is that I now have a Tektronix T922 dual trace scope at hand with probes, so I can scope the waveforms if needed. Problem is that I don't know how

. This is a really good opportunity for me to learn, as I have the set ready to test, and the equipment to do it. If I need to.
So, that said, advice as to where I go from here?