Being a Vin Diesel,Fast & Furious fan I was looking to get one authentic signed photo. I thought that this would be easy, just go to Ebay and choose one. Wrong, there are many listed and most of the signatures look different from each other. Prices also are all over the place as well with psa/dna being the most expensive. Has to be from Fast & Furious and not any of his other movies. Any advice on who to buy from for the real deal. Help very appreciated.