Spent 400k more on the exploration than what was forecasted from...

Spent 400k more on the exploration than what was forecasted from last quarter. is that a good sign or bad? have they accelerated with the initial exploration phase? it seems that they kept staff & admin cost down compared to forecasted c.f. though. What do you guys expect from "geophysics" phase as highlighted in the exploration plan for Mulligan? What kind of announcement can we expect at the conclusion of this phase around May time frame? will it provide better indication of the cobalt in the ground or we won't know until they drill?