From March 2018 Year End Press ReleaseReconciliation of 2017 ramp-up production
"Grade reconciliation to the reserve model for the period August 1, 2017 to December 31, 2017 was approximately 75% to 80% and attributed to:
a) small sample of the production being analyzed
b) rudimentary grade control without grade control program operational
c) lack of drill density in a significant area of the contributing stopes
.......................as the grade control program becomes operational and the mining moves up from the 1200 meter level into areas with higher drill density, reconciliation is expected to be more robust."
So, looks like the missed again, heh.