If the signals are right we need to filter some of the signals to reduce the losses.

I know two ways for this filtration:
- slightly. The system will produce some losses and it will be profitable finally.
- we may filter almost everything. In this case we will not trade very often but will trade in profit mostly.

For example.

We have mandarine EA. This EA is trading often and sometimes in profit and there are some losses as well. But finally profitable. It is very difficult to have multiple lots using this kind of filtration.

An other example is eASCTrend software. It is filtering almost everything and we may trade 1 or two times per month (in profit) for example and can use multiple lots.

I like to filter everything but I know that many people do not like to use any filter indicator at all. They are using fundamental analysis as a filter to decide about trading.