I am experimenting with running 4 different EAs on the same pairs chart and using Equity Sentry to sort of manage all the trades the other 4 make. Think of it as a diverse cluster of different EAs.
I dont know how there isnt a thread about this EA yet. Yes is is a closed source ex4 but it works surprisingly well.
This EA has the ability to close orders placed by other EAs and even disable all EAs if certain profit/equity/pip credentials are met. It can even lock in profits of trades made by the other EAs and perform trailing stops.
Since this EA is not my own work I will not upload it here but you can get it from the coders page. The download link is in the right margin of their page.
Equity Sentry (Free MT4 EA) | Protect your MT4 account funds