I'm gonna make a wild guess that when you short gold in the paper market, cover your short at the lower price, use the profits to buy bullion, then sell that forward into the next up move, you make a profit on both sides of the trade.
I'll make another wild guess that the Chinese are part of the deal and that the quid pro quo is that they get the lower price in exchange for not dumping treasuries.
Pretty cynical, eh?
ebear