Believe me I wish no bad luck to our hero here. My logic is simple . If I buy a prime rib dinner I will be damn sure I will eat prime rib. This was a 70 crap shoot on a rock that has no id. Could it be the rock of all rock? Sure. It just wouldnt be a gamble that I would play. With the same dough you could get a rock that you know 100% its grit and capabilities.
J.M.H.O.
I'll shut up now.