EAs with no drawdown; how do they work? Somebody please explain..?

[philippe]

A few EAs (Sbraer & Pirate in 2011, Manov in 2010) have this interesting feature where they close deals by “0” when –so I guess- the trade turns against the initial assumption.

Can someboy explain me how it works?

thanks

[Andriy Moraru]

Where have you seen that? Pirat is closing lossy deals at -225.00. Sbraer had only one loss deal in the beginning, now he's closing everything at profit > 0, not at 0.