using the L5 value, I did test on the short side. the entry price is: open*(1-L5/100), and the out price: open*(1-L5*2/100), and stop price open+0.07. the result from 2008/12/22 to 2009/4/20 almost canceled the gain from the long side, gain per trade is -0.2%. i wonder if for short side...