I think they have to prove to the investing community that they really do have the high grade material. Once that is proven then they can start to put in some lower grade material. I believe they are still upgading the rl mine to improve the production cost so why not lower production from there until you have achieved that goal. Why mine an area at a cost of $1000 plus when it can be mined later at a much lower cost. I don't think they have a problem getting ore to supply the mill from the cheaper zones. ( this is only my thinking)