For what it's worth, nothing about the card screams fake to me. I have seen some terrible fakes in KSA holders though--ones that likely weren't put their by KSA given the grade assigned, but may have been later inserted. The only deal I remember ever backing out of was for a 52 Mantle graded bubble KSA as I just didn't feel comfortable and didn't want to eat the cross over fee if I was wrong.
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