Ann: Significant Extension to Cobalt Mineralisation at Opuwo, page-54

Hi all,
This is my first time posting in any of the CLA threads. I do not normally enter a stock this early in the game but still seeking a decent Co position. From what I can gather from reading through announcements, articles and threads CLA has a good cash position with the recent capital raising providing for full funding of the next 12 months, good (hard-working & straight-up?) management with battery minerals experience, drilling completed no -ve leaky ships, target reserve 33 to 41 Mt, maiden JORC resource due Q1 2018, the announcement on 18 December noted concentrate grade of 1.22% Co with strikes of 19m @ 0.13% and 7m @ 0.17% including 2m at 0.31% and no arsenic. What I am concerned about is the grades mentioned being below 1% and the depth of resource as today's announcement and the one on 15 November both note depths > 300-400m. Any pluses or minuses I am missing? Are the concerns I mentioned misinterpreted? Thanks in advance.