Ok, understand where you are coming from. But the inference to...

Ok, understand where you are coming from. But the inference to maintain the same recovery rate but achieve 6% grade concentrate is to high grade the deposit. That, however, is only a short term fix, because ultimately what you have done is reduce the average grade of your remaining reserve by high grading. That then means you have much lower recoveries in future than what you previously had before you decided to high grade, or even higher costs, as well as producing product below your current average of 5.5% concentrate. It is a short term fix is my point.

The other aspect of high grading is you probably reduce your MRE in the probable and proven reserve category as well in future (given you have already extracted the better aspect of the resource) = more waste than previously forecast. A quid pro quo.

All IMO