[jchcollins]

I'm sure it varies, but in my experience the fading does not affect grading too bad unless it is just really extreme. This is one of the things I have never understood about third party grading - corners and surface are ultra important and usually make up the majority of a card's entire grade - but yet color and registration often do not. Fading on the back - as with everything else on the back - is going to be much less of an impact.

That Koufax to me looks like it might get a 3 or a 4 - even with the fading. Aaron, would have to see the front.

Keep in mind that even if you get a grade which doesn't much consider the fading - your ability to sell the card in the same price range as one that does not have it and has better eye appeal will not be the same. While some TPG's may not consider color and registration - collectors do - and from what I have seen the market there adjusts itself accordingly.