From what I can see JC is simply trying to point out a way that DCN can possibly improve on its ore extraction for higher grade gold production.
Somewhere somehow he has come across this issue and in his opinion he believes that this should be made more open for discussion hence what he has written on HC...
Hopefully it will be investigated properly by DCN management and if proven to be correct then we can all thank him.
If he is wrong and production is flying then it does not hurt to double check your team every once and a while...
My thoughts on the matter anyway...
GLTAH+DYOR
