You're right, I shouldn't have used the word "zero" rather instead their minimal cut off grade as you are correct, every deposit has one, and for an intersection to continue in length it must be attained. However, I think you understand the jist of what I'm trying to explain. Have you seen 1 junior explorco that reports the results in a manner similar to GNH, whereby each meter in each intersection is reported and tabulated to the general public? I haven't as of yet found one. The majority will report the total for the intersection having one or two included within having higher grades, so therefore if the "includes" are rather high they will increase the overall grade of the remaining intersection. What I'm trying to get at is that they will not show you what that intersection is "without" the included.
Skier