With the gold price where it is currently I suspect there would need to be a massive conversion of inferred resources into reserves at Co-O or B1 getting the green light for MML to triple in 18 months.
That said, I reckon there's a decent chance of it doubling in 18 months at these gold prices.
But I'll be the happiest wrong person you've ever met if a tripling was to come to pass.
MML Price at posting:
72.0¢ Sentiment: Buy Disclosure: Held