I have been told on here a few times that GEM mines the primary only and MUS mines the secondary that's why MUS will get a much better price.
I was proving this to be crap as GEM mine both and have actually dug over 800 secondary pits.
So no I wasn't down ramping just stating fact, unlike a lot on here.
MUS Price at posting:
17.0¢ Sentiment: None Disclosure: Not Held