Has the grading standards completely changed?

A seller on ebay just sold a run of 55 all American football a few minutes ago. It included a 4 horseman card. Almost every card seemed undergraded. This is very disturbing except for the fact I bought a card from him. This could be the most inconsistant grading set in the hobby. PSA is all over the board on this set. The 4 horseman card was beautiful. Are cards being undergraded on purpose? Take a deep breath and answer the question again. Are cards being undergraded on purpose? Something needs tightening up at PSA. They seem to be losing their touch on vintage cards. JMO.

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I just bought a small run of centered PSA 6's that are stunning (from a different seller). In my estimation, most are dead-nuts PSA 7's and a couple have outside shots at PSA 8. Will probably pick up a few more to sample before I consider the crack-out/resub routine.
Bosox1976
My two small subs over the past 8-10 months were graded much tougher than before. I am talking about the
same cards that are graded anywhere 1/2 to 1 grade lower.
I have another sub that I am doing for this month's special and I am preparing for the worst. I am limiting the
sub to 30-40 cards only.
I am not sure what the future will hold. I just ask for consistency.
Tom