Quote from jedwards:
To make a long story short (I posted on this many months ago), I traded it in January and suffered stunning losses, which basically set me up for abject failure the next several months because I lost faith in the system, so I would trade discretionarily from the system, cut my profits early because I was afraid of taking further losses , etc.
You're probably aware of this already, but just in case you're not, I'll point out that: the difference between backtesting and real life can be "humongous". All backtests performed in the physical universe suffer from some degree of error, and this error can easily exceed one's expected profitability.