The lightning-fast reaction time of the EA is beneficial in fast moving market conditions. Partner Links. Automating and testing a strategy is a good way to see if a strategy is viable under current market conditions. Traders from all levels can easily benefit from its services. A test of the strategy can be performed for any period in history, so it leaves it open to a lot of tinkering with the statistics. Some of the drawbacks of automated trading have already been discussed but let’s go through some more, in bullet form.