From all trading strategies in Fx trading scalping is most usable and profitable that brings profit in a short time. But in spite of a profitable trading policy scalping cannot use in a regulated trading broker due to many restrictions. by the way I am very lucky to choose LQDFX broker as a scalper which is regulated with STP Execution platform and permits scalping devoid of any restrictions including lowest trading spreads from 0 pips as well as minimum margin requirements. So, my trading life is very much comfortable.