Sounds like a wrap to me Nick.
And I very much like your H drive and HV adjust mods. Next time you are over here you will have to draw the mods on my Sams for me.
And also remember as the young wipper snapper that you are, you have been used to watching modern day tv sets that were more capable of producing a decent picture in a moderately lit room. Back in the day (yes I go that far back) us old farts were used to watching color tv in the evening, during prime time when colorcasts from the network were likely to be seen, and it was common to watch in a dimly lit (if not completely dark) room. So an expremely bright picture was not all that necessary. (IE: we didn't have to turn the brightness up so far that the picture was apt to bloom) In fact lots of people who had nearly dead picture tubes would postpone replacing the crt for years by letting the set warm up for a long period of time and then watching in a totally dark room so they could see the dim image on the weak crt.
As a matter of fact, the picture actually looked better in a dimly lit room with the brightness at a low level. I made it a practice to keep the brightness down to a low level to help extend the life of the picture tube. (don't know if it made any difference on the extended life but it seemed to make sense to me as a young kid of 17 when we got our first color set)