Mr. X was a phone in guest on "Trackfacts Live" this past Sunday explaining the theory and listing the tiers of current contenders.
I have posted the charts that I used on the show at the bottom of Meet Mr. X. See Kentucky Derby 2010 Analysis.
Remember that the choices are only preliminary, but with the major preps being over, we can categorize the contenders. I will post the final Doghouse on the night before or the day of the Derby.