I have to add my 2 cents. I have been collecting autographs for 25 years getting most of mine form the source - in person - so I know what I got. I do sell at times and found that if you have a JSA certification, your profit opportunity is greater. While I tell people I got the autograph myself, that is not good enough since there crooks on ebay that say the same thing. So, I bring some every now and then to Sports Shows and get stickers on them. I have found they do get some wrong. But again, it is only their opinion - I know what right or wrong (since I get the myself). Any expert in any field can occasionly get it wrong - just need to be right more times than wrong
. But I just wanted to say - "it is what it is". If you are collecting autographs (just like anything else), rely on your own knowledge - learn and be your own expert. You will enjoy the hobby more.
-Ray