I will be the first to admit that I am no expert, far from it, when it comes to discussing rare muscle cars, but, will go to bat for the ones who do have first hand knowledge, such as Mr. Mattison, who are willing to share their knowledge with us. Unfortunately, because of folks such as William, who basically said Jim was full of crap, many of these folks decide it is simply not worth their time to get involved.. Several, who once posted on this site, because of such key board no it alls, no longer do so, a loss for all of us. I for one hope Jim continues to share his vast knowledge of COPO cars, not only on this site, but in person, at such events as MCACN.
BTW, here is a thread on another site where you challenge both Jim Mattison and Scott Settlemire (another GM exec).
Estes Z-28