We should use the stop loss so that our money is safe from a margin call. If your analysis is accurate, we can use the ratio of 1: 2 ie 30 pip Stop loss and Take profit 60 pips. If you trade as much as 10 x and we experienced a loss as much as 6 x then we will lose 180 pips and Take profit 4x the profits 240pip. We were lucky though exposed Stoploss 7 x