One of the problems that I have is that buyers now trust PHS to the point where they accept the seller's copy! C'mon, use your head! If you are concerned with authenticity then order your own PHS. If you have questions about a car then ask the right people. There are probably a dozen people in the top tier of Firebirds, those who know who's in the first tier, and those who know those in the second tier. Then there is everyone else. If you are seriously considering a car with a stratospheric price, then authenticate it properly. If it does not check out, that information is also helpful the next time the car pops up.

I will no longer participate in speculation over authenticity. It takes too much time and effort. I'll do the research for a buyer including travel if necessary, for an appropriate fee.