I've been fortunate this year to be swing trading a system that's done well. And like all of us, I like to think of myself as a pretty bright guy. But recently I compared average gains per-trade for the past 12 months for those that I actually entered based on my system alerts, to all trades that were generated by the system. Naturally I had been working under the assumption that my efforts to use my considerable brain power to select only the "best" trades would improve my results. I was wrong. The system alone outperformed my brain by a fairly wide margin on average gains per-trade. What about you? Is your brain helping? Or do you find it getting in the way of your trading?