My system should not work if you read the books but does.
Enter long in 1 account and short in the other. Set Limit orders w 3% of funds, 0,3% profit. No stops. Fade in after 200 pips or more loss. If no exit in sight TP on any trades in profit whenever it looks like the rebound is over. With whatever profit made on that, close a corresponding proportion of the most in debt trade. The aim is never to take a loss and to hedge out nasty losses. Contrary to what the anti hedgers will tell you, you can make money both long and short on the same currency and even on the same day. For every dollar loss you take that's 2 dollars you need to make a dollar, i.e difficult becomes bl oody difficult . My recent losses were due to iphone/human errors and buying instead of selling etc too early in morning. Right now I'm working with uncorrelated currencies to avoid all trades hitting the wall simultaneously, kind of working but each currency takes a bit of getting used to in terms of volatility, daily ranges etc. Make sure you can take a 2 or 3 000 pip hit without MC by having sufficient funds. Think on long timescales of years or months, not days or hours.