This thread pretty much sums up the uselessness of grading systems as some sort of absolute point of reference. Not a single definitive answer. aUNC = a coin with wear that the seller doesn't want to list as gEF because aUNC sounds better .
can I second Brian's sentiments. Not just with posts I have started but reading others. It is the generosity of people with their Time and knowledge to help others that makes this forum such a great place to visit. Thank you to all those who contribute.