Right.
So you are essentially saying that there is an important trade volume on NBT/PPC at CCEDK without a lot of PPC stored at the exchange (placed into the order book) because traders are very happy trading at a high sell price (very close to the highest sell price of BTC-E).
But if we implement the book mirroring, that nice property will disappear; however we would be able to erase the risk of liquidity loss.
Well the liquidity is real but yes in terms of risk, it behaves as some sort of leverage.