$SOL There is a truth that you may know at this moment. Long may have a low eating rate, or to eat long, it can be analyzed in terms of gains and losses. The bruised value obtained is clearly much lower than S. Unless you enter a small order, accepting to invest and go long with it. Suppose you are sure that L will eat, but the house draws a chart that you do not dare to enter L, then that is its profession. To all-in a large order with an unsafe liquidation price, then surely the risk-takers will be more... short-term eating... if it goes against the trend or in the same direction, you probably just dare to cut, close to eat early, unless it draws or pumps a long candle according to your wish far from the entry price to always stay. As for the others, surely a small number can't be mentioned :)