Do TPG Populations Have Any Relevance To World Gold?

Dave, is there significant enough difference in value between MS-63 and MS-64, and MS-64 and MS-65 to play the crack-out and resubmit game? Seems to me the NGC population report would be reasonably accurate if it were likely that there were few inducements for crack-outs and resubmissions.

Also, given that it's gold, there isn't crowding around the MS grades as there are for silver and other metals. The PCGS pop report I have shows a reasonable spread from G through MS although I don't suppose there's any way of knowing if this is representative of the actual population in these grades.