Ann: Down Hole EM Survey Identifies Priority Drill Target, page-14

i really like your work CC, but when extrapolating grade from proportion of sulfides in rock be careful. one truism I've encountered over the years is that as the percentage of sulfide increases (eg from disseminated to massive), the Ni and Cu tenor (the metal content of the sulfide) decreases. the net result is the grade increases but not linearly. one nameless example has a disseminated zone having grade of 0.5% Ni in rock with 2% sulfide (ie tenor of 25%) versus massive zone having grade of 3% Ni in rock with 100% sulfide (ie tenor of 3%). the massive sulfide reflects huge increase in Fe and S but only 6x increase in Ni.
still, 6x increase in grade to date would be ok!