Actually there is a 4th strike length and here it only looks to be around 100 meters so restricting the ounces possible per vertical meter .
To me it looks uneconomic strip ratio too high for opencut and possibly development for decline and drives too high a % of total C1 costs for UG.
May also be a 5th thing recovery % but jury is out .
Ann: Exceptional Results Continue at Break of Day, page-5
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