If the real AISC is about $800-$850, why does the half year P&L imply a AISC of less than $600. The profit is just too high. After the write-offs in the annual report I expected to see some more realistic matching of costs to revenues. $14M added to development in the half even after all of the write-offs......and it's not the new shaft, as version 1 was supposed to finish mid this year at a cost of $10M.