How do SB firms feel about opening a buy and sell on a stock at the same time? The idea being to close the profitable position, then wait for the trend to end and close the other with minimal loss or break even, maybe even in profit too. I know the indices are so volatile you possibly couldn't open both positions fast enough, but on stocks this isn't a real problem.
Another idea would be to close one when the trend after a particular event has been established and keep open the profitable one.
It isn't too much of a problem to be honest (may depend on your broker i suppose) but in general from what I have seen countless times, this method usually ends badly for the trader and so it can only be beneficial to us.
Using an approach such as this requires too much accuracy and no one can pick tops/bottoms perfectly so what you would find is, if you opened up one side, and then your trade begun going against you, you would probably have to take some pain on it. Other factors such as spread and financing charges (swaps etc) will also factor in meaning that you have even more odds stacked against you.