I haven't compared the Ta with others, but Bald Hill was primarily a Ta mine until they discovered high grade Li in the met test works (when Ta prices went down). So you would think the Ta would compare favorably to the others. Check out this post for summary of AMAL's sub holders shenanigans: https://hotcopper.com.au/threads/sh...675153/page-216?post_id=27216681#.WdCsMvQsXqA