I know I can use the points only backtester in metastock but the bottomline is I don't trust the results. Can anyone help me with this design working off a latching system. {Back tester for points only} x:=fml("Your Formule Name here"); {Alway use a latching formula this system is design to work with a latch only} buy:=ValueWhen(1,x=1 AND ref(x=0,-1) OR x=1 AND ref(x=-1,-1),O); sell:=ValueWhen(1,x=-1 AND ref(x=0,-1) OR x=-1 AND ref(x=1,-1),O); buyexit:=ValueWhen(1,x=0 AND ref(x=1,-1) OR x=-1 AND ref(x=1,-1),O); sellexit:=ValueWhen(1,x=0 AND ref(x=-1,-1) OR x=1 AND ref(x=-1,-1),O); {Profit} profitbuy:=If(buyexit>buy,buyexit-buy,0); profitsell:=If(sellexit<sell,sell-sellexit,0); {Lost} lostbuy:=If(buyexit<buy,buy-buyexit,0); lostsell:=If(sellexit>sell,sellexit-sell,0); profitable:=cum(profitbuy+profitsell); notprofitable:=cum(lostbuy+lostsell); profitable; notprofitable; {Design Idea is when the latch turns on I want the value of the open and when the latch goes off I want the value of the open subtract from when the latch turned on. Then I want to add up all the value from the profitable ones and then subtract that value from all the unprofitable values for a total. The total should then tell me if the system is profitable or not}