Definitely want a bigger coreshack. No point in drills turning if you can't handle what they're producing.
But more drills are vital. I've been told to be wary of any company that runs one drill and still asserts it has a "major deposit": a real major deposit gets perforated like a muscle shirt. But, that produces a major burn rate, and that requires lots of cash, and that requires financing, so maybe it's better to tantalize with a 100MT inferred deposit so they can do a share offering above $1?
Anyway, as I said before, this site still looks like it's got until 2012 before it can reach top price. PEAs and 43-101s don't get done quick, especially if this is a quirky deposit to model.