I have used GT-Shadow for 3 months now on both AUDNZD and EURCHF on a balance factor of 2000. (yes that is agresive but i can always fund the account when DD becomes too high). Profit so far is about 60%.
I have only used the robominer settings. With these settings it is easy to use another pair that is close to historic highs or lows. You will set the GT-shadow to only trade buy or sell orders depending on where the trade is. If historic lows you only place buy orders if historic highs you only trade sell orders. The idea is not to trade in the middle
range 
as you can potentially have lots of trades open.
Great
currency 
pairs that can now be traded are USDJPY & AUDJPY, you will get good
volatility 
hence more closed trades and closed profits.
AUDCAD can also be traded through whole its historic
range 
over the last 20 years on a 50 pip
range 
.
Introducing 4-5 pairs and increasing the balance factor will make this EA even more safe than it currently is.
Has anyone tried the hedging or the gridweaver settings of this EA. It is very versatily and one of the best EAs I have come across.