Herb I believe the 420 M hole was hole#15 that intersected the large fault and found no sulphides.
As for why they pushed the drill to 420 M, I would only be guessing. And my guess would be that once they realised they were in a fault, they believed it to be probable that the sulphide could be close by.
Peter Smith at FNC believes that the land at C1 near the Eagle deposit is significantly faulted and twisted and that the magma has filled the faults. He believes that eagle one is a fault that was filled with sulphides during a volcanic event and suspects there are other similar structures in the series of faults in that area. He is drilling as we speak according to the NR.
SN