My understanding of his comments are that the nuggety effect causes a difficulty in determining the boundaries of the resource as well as in the grade in the assays.... this in turn makes defining a resource zone difficult.
How is GNH able to determine the dimensions of the deposits when they can't bulk sample at depth? Do they just look for host rock in the drill results and assume gold will be there too? Obviously this would cause serious issue in developing a 43-101.