Its really up to you which authenticator to use.

I dont like authentication companies, partly because of what I read on AutographAlert all of the time. But, when it comes to Barack Obama autographs, PSA and JSA are always reliable. GAI is NEVER reliable with Obama autographs, they ALWAYS authenticate forgeries.

This site I found pretty much answered all my questions about JSA amd PSA and also made my fears of trusting ant dealer or authenticator through roof:

[url]http://www.autographalert.com/news.html[/url]

I'll be checking in on it often,

So JSA is better for sports, but PSA is better for all signatures?

I'm interested in finding someone who would be good at authenticating Star Wars signatures from the OT and PT - mainly lead actors and principal behind-the-scenes, does anyone specialize in actors of a certain movie genre?
I was thinking there must be some people out there, considering the popularity of collecting cast and crew items from TV shows and movies.

I usually go with JSA over PSA- but as Chris has said, both companies have mistakenly certified things that should not have been. [b]Hence why no authenticator will give more than an "opinion" [small print saying that in a court of law... neither will be held responsible for wrong certification].[/b]
In theory it comes down to personal preference a lot- but it can also come down to the subject matter and specific person. For things like sports figures I always go with JSA- they specialize in sports and vintage while PSA does just about anybody.
We actually did an independent test and using 3 signatures (1 authentic full signature, 1 authentic scrawl [like you might get if they're in a rush], and 1 fake). PSA certified all 3 and when contacted about this they said they wouldn't be held responsible and have since voided the PSA serial (which we're fine with). **I can't go into specifics because I don't want to risk any legal issues with the company, but nobody's perfect. And for reference, we had permission from the person to use their signature and so it wasn't forgery. All 3 pieces have since been discarded.
I also tend to like JSA's LOA, but that's a matter of opinion. You also have to consider that JSA will not certify certain things that PSA will (oddly shaped items for instance, JSA is more stringent on what they will and will not accept).
-M

If you have any questions about what I just rambled, feel free to PM me.
**Global Authentication is Ebay recommended, but having never worked with them- I have no idea... haven't heard anything good, so I'd stay away from them.

Don't use authentication services unless you're planning on selling an autograph. While it gives buyers peace of mind, these "authenticators" have been proven again and again to be fradulent--All they care about is taking your money.

I've seen WAY too many authenticated fakes to ever consider using an authentication service.

But, if you insist on "authenticating," go with PSA. From my experience in buying autographs, it seems JSA will put a sticker on anything.

[quote="bud simpson"]Both are good, as well as Global Authentication.[/quote]

JSA and PSA are great, but Global is horrible. Never use them!

Good to know, I didn't get the sense GAI was the best from what other people had been saying on the net.

Yes, I got to believe they would be able to determine Secs. And of what I've herd, global is the worst out of the three. They will pass just about anything. I would say PSA is the [us] best.

can they tell if its a secretary or not too?