I am assuming that what I have done at this point is to preserve the Studio RGB values on a PC RGB system. Agreed??
Yup. It'd be preserving even if you didn't scope the output, as long as it's being output. I am assuming we are talking VMR9, probably renderless in TT. (For others reading: the VMR9 should be preserving Studio levels by default, regular Overlay usually expands to PC levels by default. This can vary depending on software, drivers, etc etc of course.)
If so I can then go and using this desktop set it so that the desktops brightness is not showing BTB and it looks the same as Black but I can just barely see the differentiation of the next step, and WTW looks the same as White but I can see the differentiation of the next step down. BTW this is al done after the greyscale has been properly calibrated. Do you agree so far??
Set "it"? Do you mean the display? I'm confused as to what you are adjusting here. If you mean the video card settings, there isn't a way to have a reference display response really, (that I see), and also there is the danger of lowering the output and clipping BTB below 0mV. Here I am assuming you mean calibrating the display to this desktop that yo've set up above. This sounds good, but I would tend towards preserving the differentiation of peak whites even on digitals. On CRTs, there shouldn't be any problem with peak whites since a CRT won't clip. Try to avoid colorshifting the peak whites though, and this would indicate a pretty high white level setting on a CRT projector anyway...
If so I can then go into my DVD player (TT in this case w/ VMR9 and renderless) and using the software players brightness and contrast controls adjust the BTB and WTW as I did on the projector above. Would you agree with this, and could we say that I have calibrated to Studio RGB levels first in the PC, then from that reference to the projector, and then once the PJ is set to the reference, the controls on the software DVD player.
I think I see what you're getting at. I'm not sure how precise this would be, but it would be close. I like the idea of taking screenshots of the rendered image, and looking at the RGB values in paint and getting them lined up that way. I have been extremely busy lately, so this is something on my "to experiment with" list still. I think this method of measuring the actual values of captured patterns (making sure they're captured correctly, I have to figure out the print-screen thing, because screen captures in TT for me captures regular overlay or something because it's expanded and not what I'm seeing rendered).
I think your method relies more on visual alignment, and I think it'd be pretty likely to end up a click off or more, especially if you're not looking at 100% identical patterns on your desktop and in video, because of ANSI and things like that.