RE:HEYWOOD -I am the farthest thing from a geo, so I have no idea why a former plan was scrapped in favour of the path that led to the current PFS.
If there were shenanigans going on, why hasn't the company been sold off on the cheap or taken private by now? Occam's razor would lead me to believe that the anwer to my query is that individuals in years gone by decided that the market would be most welcoming to a resource that is more compact and defined than one that is larger with more metals and a more complicated process flow chart. Rick Rule even has quipped (at least to me privately) that Wellgreen is a "science project", which I take it to be that he believes it is a hodge-podge of metals in the mix and the company hasn't pinpointed the proper metals & methodologies that maximizes value.
Most of what you are discussing revolves around base metals. My hunch is that looking forward, the precious metals (PGMs) will increase substantially more than will nickel/copper on a % basis. Between the older models and the current one, I prefer the one which will yield the most Pt & Pd output. Remember, platinum was in the original name of the company. Not until its current iteration was nickel introduced into its name.