I have been watching the stock for some time though have no...

I have been watching the stock for some time though have no experience with "goldies".  The grades appear to be high though I am wondering about AISC.  I guess it is an estimate.  With narrow vein mining can they know with much certainty how much AISC will turn out to be in reality? In practice could AISC turn out to be uneconomic such that production ceases and shuts down?

They are also appear to be relying on ore sorting technology to provide their numbers which I don't know has established history behind it for gold mining. 

https://www.ausimmbulletin.com/feature/sensor-based-ore-sorting-maximise-profit-gold-operation/

They previously mentioned using twin boom jumbo excavators.  I was wondering if twin booms would be overkill if gold is located in veins much narrower than the twin booms?

As EGA is a single mine venture I guess it is a one trick pony.  The easiest and possibly richest pickings were mined long ago.  The project relies on being able to profitably mine much deeper.

As the project has a short life span I am guessing the only way a long term holder will profit is by take over or by receiving large dividends during the mine life that in total exceed share purchase cost.

Have also read up on a similar situated company AUL (Austar), which is focusedon the acquisition and return to production of low entry cost, idle gold mines in Victoria and sp in that comp has also been really struggling, even though some gold has been recovered and poured recently.

As I am 100% novice regarding gold miners some of my comments above are likely naive.

regards.