I had a very informative discussion with my dealer about 90% on Tuesday. The reason the $/FV goes down as the price goes up is two fold. The $/FV standard only holds on uncirculated coins, which 99% aren't, and 90% needs extra refining to get back to .999. It only stands to reason that a pure bar has a refinery value of say 99%, a coin that is likely under weight and needs extra work will have less value per weight.At this time nothing. I was a dealer in a past life during a past run up. That was my experience. So, if the price continues to go up, you should try to sell to other stackers rather than off loading to dealers who are going to hedge on the price they are willing to pay, just in a case of a down turn.
I asked him about some Mexican and Canadian stuff that's 850 or 800 silver, he quoted me a price so low I won't even fool with it.