Can you match PSA's grades for these cards?

While I was compiling my collection, I just happened to acquire the same card in more than one PSA grade.  So we get to have some fun second guessing the PSA graders. The answers are at the end of this section.

These three Merrit Ranew Green Tint cards were graded 8 (Near Mint - Mint). 8.5 (Near Mint - Mint +), and 9 (Mint) by PSA.  Can you tell which is which?  Half a grade difference is worth about $75 for this card.


This 1963 Strikeout Leader card featuring the Colt 45s Dick Farrell is shown graded both 7 (Near Mint) and 8 (Near Mint - Mint) by PSA.  Can you tell the difference?                                                                                                                                                 


 Here's an easier one.  Harry Craft's cards are graded 6 (Excellent - Mint) and 8 (Near Mint - Mint).  Centering and corners clearly rule on these two cards.                                                                                                                                                                                                                                                                                                






Merritt Ranew: 9  8.5  8  from left to right  (I can tell you that the cards are barely distinguishable from each other when you are holding them.)

Strikeout Leaders: 7  8  from left to right  (Personally, the PSA 7 is a superior card over the 8.)

Harry Craft:  6  8  from left to right  (No doubt PSA got these right.)