As you said, grades are not comparable.

Also, they are talking about a very DEEP deposit. 2,000 feet down.

Also this disclaimer:

* Note: It should be noted that the resource estimates prepared by Falconbridge should be considered to be historical, and as such do not conform to the requirements of National Instrument 43-101. Although Blackstone and Arrow consider the resource estimates to be relevant, they have not been verified by a Qualified Person for Blackstone or Arrow, as required by National Instrument 43-101, and should not be relied upon. Arrow intends to establish new resource estimates under National Instrument 43 101 guidelines in due course.

Here is the link to the page

http://www.canadianarrowmines.ca/kenbridge-nickel-property/

BK