Hi Bob,
I didn't mean to imply that the steps I took are specific to my gear. They apply to most turntable and cartridge combos, and certainly to the Technics tables that we have.
For example, when you set the VTF (vertical tracking force) at the outset, just get it close because any movement you make with the cartridge (forward or back) during null point alignment is going to affect VTF because you're changing the balance of the tonearm assembly. Similarly, VTF and VTA are related because the force on the stylus changes the deflection angle of the cantilever.
There has been a lot written about TT setup and you can read to the point of overload and exhaustion. Note that there are practitioners of the TT arts who have a fanatical devotion to detail and demand absolute adherence to the one-and-only proper procedure, i.e., the procedure they themselves practice while spitting on all others. They may descend upon you like a plague of locusts... or not. Most of them don't think the 1200 is worth fussing over. If they show up, listen to what they have to say, but don't lose sight of the goal: sound that *you* like, reproduced by equipment that doesn't damage your records (or itself) during the process.
Your manual, if you got one, has a page with VTA settings based on overall cartridge height. This is probably an approximation at best, as is the overhang jig. Download or buy a protractor. Get a stylus force gage. A decent, powerful magnifying glass and a good flashlight are invaluable as well. Move your TT to a comfortable, level working position if its location in your equipment rack will make you spend a lot of time bent over or on your knees.
But first, read up. Google is your friend, as are the denizens of this forum. You may want to start here, just to get an idea of what lies ahead:
http://www.gcaudio.com/resources/howtos/cartbasics.html
http://www.gcaudio.com/resources/howtos/ttsetup.html