I don't see depth as a problem, since it is an open pit mine. With the proper equipment, it can be cost effective at todays price for gold and silver.
The issue I have is this "march to production" that is barely a "crawl". These delays have been typical since the Goldspring days. Yes, the management is different, but did that really change anything?
I'll buy when production starts and is continuous - they have lied too many times.