Posted By:
Eric BrehmPeter C., what I have done is compare population reports for sets I am interested in at different points in time, say once every six months. That gives me an idea how much the populations of cards in different grades are changing over time. I have found this useful when looking at high grade low pop 1933 Goudey cards, for example. For T206 cards (HOFers only), I ignore population reports entirely, since I collect them in middle grades and they are all plentiful enough in those grades that it doesn't matter (except Plank and Wagner of course).