"The VOM controls this risk by maintaining a server-based stop at a configurable distance away from the tightest virtual stop."
That's sounds fine at first, but (in some cases) what happen is that the server-based stop end up being tighter than the loosest virtual stop.
It's specially true if you decrease de distance, like:
Also, it would be great to have the same security system to keep the profits, maintaining a server-based take profit. Don't you think?