Teck has essentially been redoing the FS without calling it that, for reasons unknown. They restudied the precious metal content, pit design and incorporated their drill results that would have upgraded some of the inferred into indicated or measured categories. The final resource numbers were considered close enough to the FS numbers that the FS was judged to be current. The biggest change in the FS numbers was the reduction of inferred tonnage by about one half, probably from the Teck drilling in 2013.