I don't do that, as it costs me more money. I have a very high win/loss ratio so the impact of a losing trade is smaller then the impact of being stopped out from a profitable trade while trying to avoid losses. I do put a fix stop, but when the stop is hit I lose money. But with a drawdown that never reaches 30% I can live with that. Recovery time is also less then 24 hours so losses are irrelevant.