Zen, maybe your edge is not as sharp as you think it is, maybe you are running bad, maybe trusting self governing casino institutions with an interest in you losing with large sums of money is a terrible idea.
A, B, C, or all of the above could be true.
I know Colin and the church team swore by the SoCal joints and KC reported to win big in the region in "Inside the Edge".
Of course, you think all of these people are frauds, so...
Edit: 60 hours isn't much of a sample either.