I've looked at the announcement and Gilsey is right it is...

I've looked at the announcement and Gilsey is right it is reminiscent of Kalkaroo drilling.
It took a long time to find the sweet spot of Kalk. and even longer to drill it out. With a plant going to be in place and most probably amortized it changes the economics of new "ore".

BHP are the crew for the job. They can use all their new thinking (mainly new name of the division) to squeeze the lemon* and I presume the juice will be worth the squeeze on North Dome. Province-style plays are what wants to be able to 'turn the dial'.

All IMVHO.

* lemon selected over orange.