The other thing I just noticed is that Caserones' P&P is a "historical estimate" not meeting 43-101 standards.

“historical estimate” means an estimate of the quantity, grade, or metal or mineral content of a deposit that an issuer has not verified as a current mineral resource or mineral reserve, and which was prepared before the issuer acquiring, or entering into an agreement to acquire, an interest in the property that contains the deposit;

To be fair then imo in a comparison with Caserones, Schaft Creek's 2012 Resource Estimate MI&I should be referred to:
 
 10 Billion Pounds of Copper,
 10 Million Oz of Gold,
660 Million Pounds of Moly, and
100 Million Oz of Silver.

IIRC the Schaft Creek PEA uses only about a third of the above resources.