Here is a more refined system that trades S/R, but not just the H/L of bars. It uses 15 minute bars, but works on other time periods as well. This is on the actual ES emini September contract from June 13th, to July 9th, 2002.
The Performance Summary:
The Performance Summary:
Just posting this to somewhat prove that mechanical systems can work. The main problem I find mechanically trading over long periods of time is the changing personality of the market, and knowing when to step aside and when to dive in.