Yes - hole #4's logic escapes me completely. Dig down along another shaft?I fail to see ANY logic in being so intent on finding "previous searchers'" holes...they came up dry, so obviously NOT "the spot"...so why re-dig them? Oh yeah, the old "they stooped too soon" theory?
It's almost amazing that they can find the gold flaked metal fragments of the Chappell Vault when drilling exploratory holes but come up almost completely empty when excavating a mega-shaft.