My view is that until base metals increase appreciably,I see jam in the far horizon.I got in and out twice,profitably, quite a while ago,but decided that this polymetallic could take a long time to see the light of day.So the biggest gains in the relatively short term have been made by those getting in at basement bargain prices over the last few months.Look at the pedestrian performance of the share price from the point of view of most investors, no matter how much the hyping of blue sky potential.All these costs are theoretical anyway,they're usually way below reality if history is to be the judge.