Hey Unicrumba the best we can do is use a definitive study as a...

Hey Unicrumba the best we can do is use a definitive study as a starting point and modify the numbers as they come to light. The most important factor of all is that the mine plan must match the production plsnt's output and as such, we have to include a whole raft of other costs including upgraded camp, bigger tailings dams larger mining fleet, bigger gensets and the like. Everything had to change except hopefully the head office costs stay the same