So if one person has 90% of share and one person has 10% the 10%er kind of has the other guy by the balls. You should make sure to be that 10%er. Or maybe you buy 60% from yourself and don't even have to send that 1 coin ever.
This. I am not interested but the concept doesn't even make sense unless you are talking about at least dozens of ounces and willingness to buy more gold and issue more shares to improve liquidity as needed.
For example say you issue 1000 shares per ounce. A trapped investor has 220 shares but needs 250 to liquidate. There are no sellers. You offer to purchase another gold coin(s), issue new shares and sell 30 to him an secondary offering, and the other 970 to any other investors. Trapped investor now has 250 shares, he liquidates them, 250 shares removed from GLBSE, one 1/4 ounce coin removed from backing assets.
If all that sounds like too much work well ...