Looking at the projected EBITDA (see the dotted line on page 11 of the presentation), I don't see any big problem with the strip ratio.  Also, they are going to build a large ore stockpile in 2013, so they are not likely to run short of material to process, while they remove those hills some idiot put on top of their ore deposit..

I thought the most interesting thing about the presentation was the potential to increase underground production.  The 5 year mine plan they published earlier was really conservative about this.