If i can ask...why do you trade so many pairs??? Why not focus on just 1-2 paris and create a trading system for those pairs? I would think that each pair has its own unique identity so creating one trading system is kind of unfair and i would think unsuccessful as i have seen in the past.
For example, i was tought that the gbp/usd and gbp/jpy although they have similar moves they are very different in so many ways...so one trading system will not work for the other.
Just my two cents
thanks