Trader involvement in Forex MT4 Expert Advisor trading. Inherent weaknesses of Expert advisors Forex Expert Advisors have inherent weaknesses. EAs use testing based on historic price action to determine their potential profitability. There is no guarantee that the same price action will happen again.  The other constraint is that EA optimise settings using an average of many transactions – ideally each transaction should be optimised such as is the case… Read More »