Even with 1400-1600 AISC there is still value and it also depends on grade for AISC as to date that has been lower than average for the deposit and it is directly proportional (similar to SR) so that will play a big factor.
I believe that's part of the reason this stockpile issue is so big is that it could show the mining model for grades to be incorrect which would be huge, however it's a huge assertion to say that off such limited data which is why I disagree with jumping to conclusions also.
BLK Price at posting:
8.2¢ Sentiment: Buy Disclosure: Held