Bob,
You make a valid point, there are many more horses with the 3+ prep angle.........but how many of them were hopelessy overmatched to begin with?? They could have had 2 preps and performed the same way. I think we are getting too carried away with this whole discussion. We are trying to quantify something that may not be possible. 3 preps, 2 preps, whatever. There are many factors that go into whether or not a horse will run well on Derby Day, and Frost mentioned another one that has merit.