Can anyone really tell?

NGC is no different than any other 3rd party Much of the grade is subjective not objective I think the real cut off between the 2 is probally a 65. If anyone can give purely objective grade above 65 I would love to hear it . This is the offical definition given by NGC its not the same as PCGS or ANACS NOR that of ANA.

"What is a 70? NGC defines a Mint State or Proof 70 coin as having no post-production imperfections at 5x magnifications." I have come to accept what I get.