Hard to improve on that, Bob. Looking great!
Looks like your changes might have picked up a drive line at the left edge of your set. I don't see a Horiz Drive adjust on this set. Wonder if it can be done...
Good point John F. Here's the output of my generator on the most modern set (a late '80's Sony Mega Watchman) I could find
Looks like a slight bend on the left side. Might be in the Watchman, too. I guess the only way to be sure is to use a lab-grade o'scope and check for straight sawteeth.
For benchtop work, it's more than adequate as-is.