re: Bob Brinker
I don't know anything about Bob Brinker, so don't take these comments about him, but about timers in general.
Many timers to me are like tarot card readers. They have ways of turning the language so you can look back and say "yep, they were right." For that reason, I would strongly recommend Hulbert's Financial Digest.
Mark Hulbert has made a career of following what timers say and then doing the math using the timer's own recommendations. He has very logical rules which he puts in place to make his comparisons fair, rules which sometimes the timers don't like but which make perfect sense (i.e. he doesn't allow them to waffle). He rates timers both in absolute and in risk-adjusted returns.
I used to subscribe to his journal years ago, but don't any longer now that I pretty much use AIM. I highly recommend taking a look at it before you believe the self-spin of any timer.