BB ,
I appreciate the effort you put into your research ,which pays off in the long term .
Lazy buggers like myself really soak that stuff up,and include it in our calculations on how we go forward.
That stockpile however looms large at the moment ,and might provide a dampner for a little while yet.
Which is not the case for Copper at the moment.
I know this is short term thinking but thats the way I trade in a lot of cases.
Good luck .