"if radio carbon aint supposed to be detectable and it is, does it really matter how many other tests you run?"

Pardon? What isn't supposed to be detectable? Also, cross calibration is between several isotopes, not just one.


"and just to be clear, I do not rail against scientific methods,"

Yes, you do. Constantly.


"and am glad to hear how such were employed on the charred MS. useful for dating more recent historical items , but I suspect, giving more suspect results as you reach further back ,where there are more uncertainties, and assumptions have to be employed."

Huh? You can't have your cake and eat it, and your personal incredulity in no way alters the results of research of using metals as biomarkers (one of my own dinosaur bones was used for this purpose a few years ago). Suspect and assume away, it is simply your own viewpoint and not objective in the slightest.