Djim

Enigmatics, I believe I am in a similar situation: my system (executed well) produces better results than I produce when using it. Thus, my conclusion (opinion, theory, what have you) is that the problem is me, not the system. That being said, I break my own rules for a reason, so my solution is to (a) examine my system and its results so that I am willing to believe in its effectiveness over time, and (b) single out particular problems (behaviors) that I have trouble with and work on replacing those behaviors with better ones. My broader system includes me, and it clearly still needs work. In answer to your original question, it seems to me that knowing, deep down, that your system produces a statistical edge provides a psychological edge as well.