I talked with Gary Lindsey in IR today. Found some interesting info.
Evidently the silver they are pulling out of the pit, not the dump, is now averaging 36 oz. Repeat 36. They have been quite surprised by this turn of events. They are still averaging 11% gold per bar. Friday was the 5th pour.
Per your post relating to Tosca:
<<<"plus a “potential open-pit resource” of about 3 million ounces of silver averaging about 6oz Ag/ton (Rio Grande Mining Co., 1998a).">>>
Mr. Lindsey said they now expect to have several years of mining material from the pit not included in the Shafter study.
His direct number is 720-273-6224 fi you have any questions or wish to verify.