OC- Grounding pin 5 did indeed give me a flat line. Jumping pin 5 to pin 7 gave me a lot of deflection as you can see below. The two pictures below display the range I got from adjusting the linearity adjustment.
Very exciting to see something different! Also kind of interesting to see 60hertz through the second picture, which I only noticed on the picture and not looking at the set itself. Thanks so much to all of you for all the help again, I'm having such a blast with this!