Double lots and double profits its sounds good , to trade with this methods we need good capitals and good trading strategy . If we enter double lot if its possible we make huge profits but if the directions may be opposite we too face huge loss . so we need more experience and good planing to enter those trades to control every levels . By trading with this conditions we face both loss and profits with higher with good knowledge and experience we can make it bigger . Multiple doubles guarantee double, but multiple doubles also guarantee double losses if value movements do not occur in your method. A square double stack if you have enormous capital, but not for those who have a small cap because it can lead to poor equity and based on my understanding, the more we multiply, the more we double the profit, but at the same time we really need to understand that the more we multiply many other things to double earnings, we just need to pay attention to risks involving equity requirements thats what I think