I don't know where your lightning fast execution is.... ever tried taking a position during an economic announcement?? You leave enough of a delay to see if the trade would move against you and if it does it's rejected, however, if it moves in your favour you don't update to the new price contrary to your claims of giving the best prices. Even when trades are taken quickly, the slippage is massive. Also, your spreads become ridiculously wide during these times also.