Negative correlations System - MT4/MT5 Resources

Hi everyone, this is my first post, I have been trying this negative correlation system for a few days and I decided to open this thread to be able to discuss...
The system needs to open a position to buy or sell 8 currency pairs. The currency pairs are:

EUR/USD USD/CHF GBP/USD USD/JPY GBP/CHF EUR/GBP NZD/USD USD/CAD

I am testing with a demo account of 5000 lots and 0.5 lots
.....and just wait for 50-100 profits to close all tasks immediately and start a new group purchase or group sale again.
From November 28, 2011 to today, I made a profit of +1023 (thanks to yesterday’s news, I made a profit of 400 in a single group operation).
At this time, let’s close the position with the expected profit of yesterday’s opening set of -500.
So far I haven't seen any open group go over -650 (when you look at the monitor).
I noticed that there was always a gap between profits and losses, and I did nothing but wait for it to pull profits.

Iuri