The further studies for the underground has been known for a...

The further studies for the underground has been known for a long time lol. The idea has always been establish an JORC open pittable reserve to produce cashflow which will then fund underground expansion of the mine down the track. If your going to try to down-ramp, atleast be familiar with the story.

As for the drop, the twitter pump crew got their hands on this, I think many of them thought we were meant to be seeing a doubling of the resource or something like that. People who are familiar know it was simply to convert inferred to measured.