Currently I'm experimenting with a 1hour system on eur/usd and gbp/jpy. I would like to try my strategy on other pairs but find that they are very correlated. When one pair gives a sell signal the other pairs are also giving a signal to sell or buy if negatively correlated. My question is should I give up my quest for finding this diversification? I currently risk 2% per trade and am considering increasing it to 4% and give up on diversification in order to increase my returns. Just would like to know how others have dealt with this.