Fifty percent more gear underground (from 4 to 6 trucks, and...

Fifty percent more gear underground (from 4 to 6 trucks, and from two to three tele loaders) - doesn't that equate to a higher mining cost than the market was expecting? Extra congestion down there as well?
So does that mean they will need that fourth decline?
Great that the grades are reconciling - but it there something else about the mine that is not being disclosed, leading to this prob? Is the ore difficult for operators to distinguish?

Does anybody have an estimate of the likely unit and capital costs for these items?
Does the extra $100 in AISC sound roughly right, and might you apply that to LOM?
I'm asking because I don't know - not rhetorically.