I am in the middle of the Algorithmic Trading Course: London, New York & Tokyo system course. I have run EA Studio on M15 history on all the currency pairs in the course. I have used various acceptance criteria – same as yours in the course (with the exception of max ambiguous bars, but with Min backtest quality of 98), as well as several different less strict. Count of trades – 100, profit factor of 1.1 only, and Monte Carlo at 20 trades, 80%, but I am getting very few, if any strategies created on some of the pairs. I have used historical data from JFD, as well as from DukasCopy from your app on the site, but still, I am finding very few strategies.