I purchased an Arnold Schwarzenegger signed bodybuilding photo for my man cave through PayPal goods and services for $450. Psa’s quick opinion came back as “likely not authentic”. It already has JSA (James Spence) authentication with it. The seller on eBay (blue.line.signatures) has 100% positive feedback and only sells autographs. How accurate is PSA QuickOpinion? I’m just wanting to know it’s a…