Greg, the color in that shot seems to be in line with the others of similar lighting, the tones seem very natural. I don't see any of the redness you allude to.
I hope this is helpful information. I went through the same ordeal last summer trying to get colors to seem vibrant, and after working for hours and not seeing results, I switched to a different computer and saw immediate results. Then I kicked myself in the groin a few times.
Nice pics by the way, especially the one you directed me to.