Good points but doesn't apply if you've got a super high grade orebody that's 100's of metres wide and you're mining 100% ore (no waste).
I certainly looking forward to the day when we cut the ground with an 8 metre wide bucket but we'll always be a mill constrained operation so a 1m wide bucket will do for now. I looking forward to the day when we cut the ground with any kind of excavator bucket!
Long before the time that bucket hits the dirt there'll be a heap of awesome news that will make the headlines so the SP will a long, long way north of where it is now.