Wow Pretty specific on the post about shipping and testing. Have you been burned on here before? I mean I have bought a couple of s3's from trusted users and always paid up front before shipping. For me as a seller I wouldn't ship anything unless I was paid first. I mean all you have to do is pencil mod s3 to show it isn't hashing right. Not saying you would be just thinking of all the way this could go bad for the seller.
I mean I can also see it from the buyers side too, just never seen a post like this before. Good luck on your buying though.
I have a very large buying history on these forums and have done many deals and because of that, I am very trusted and have learned how things work. Because of that trust, I am afforded the ability to be picky to ensure that I don't get burned. A seller for these units can ship them to me, knowing full well I am trustworthy enough to not screw them over if there isn't a problem with them, it also ensures that I don't get burned in the process by someone dishonest. This account is worth well over 80 dollars so for me to scam for so little makes no sense anyway. I always offer an escrow option, as that's quite standard and if the seller chooses to use it, they can pay fees, but I believe my reputation goes a long way as well.