They are making sure they drill in the right place.... or as close to the right place as is humanly possible.
I would like to see at least 6 - 8 holes slated for the A1 anomoly as it may take that many to get the first god hit..... if A1 is a snake like structure, if it is something larger it may hit on the first couple holes......You need to drill enough holes to define what is giving the responce on Mag. Confirmation of Ni, Cu, Au,Ag and Co in the MMI is very encouraging.