PSA had told me that to grade a 'variation' there had to be 2 articles published about a card and they did not consider variations that were not intended (my interpretation). Not sure what that means as they now grade the Yellow House variation, do not grade the Campos Top Border variation and will grade the red star black star variation.
The skeptics would say it is so they can make money at a later date when they start to accept the major variations, so they can get additional grading fees.
