Homey,
"from the horses mouth" Did you ring the MD for this answer?
Now i'm on my computer, having another look on page 4 of PFS it gives you the run down of ore used for LOM, seems they are reaching (nearly) full capacity in year 1, but goes down significantly in years 3,4 and 5 due to nature of harder ores:
First year they go over 1.85mtpa milling mostly Matilda and Galaxy!
In year 2 they go to 1.6 mtpa milling Matilda, Williamson and little Golden Age..
In year 3 they are down to 1 mtpa milling is EW underground, Williamson and Golden Age...
In year 4 th year they are 900k tpa milling mostly EW underground and little Williamson...
In year 5 down to 700k tpa milling Matilda, Williamson and EW underground...
Its going to be interesting when they add the extra 3-5 years LOM of predominately oxide/transitional ores from Matilda, Williamson and Galaxy! for DFS
Whats more interesting is they already have nearly 3 years in the PFS model of higher grade 5-6.7 g/t of UG fresh ore so combined with more results from Golden Age(production history of 9g/t)