Hey Rick, you asked questions that I don't know the answer to.
(There's an awful lot of those floating around.)
Seriously, with my prior Dwin HD-500, and now with my just up Dwin HD-700,
I find that the color and tint seem to be perfectly set automatically by the HD pass through connection, of the Transcanner and now on loan the Crystal Image until I get the Transcanner 2. I just set brightness and contrast for the projector memory.
I doubt that the Faroudja 5000 or any top notch video processor will allow for color or tint adjustments for HDTV? Why? Because if you have grey scale and contrast and brightness properly set, it ain't necessary to monkey with color and tint. And color and tint control over HD means that the signal is being processed, which in and of itself can degrade that pure HD signal!!!
Again, I am just making an educated guess.