Here's another idea for self tuning. create 4 values for purse ranges, cheap, low medium, high medium, and feature. for example at Del Mar cheap purses would be 0-21000, low med would be 22000-40000, high med would be 41000-59000, and feature would be 60000 - and up. then go into the database manager and enter the purse value. for races in the cheap range enter 20000, for races in the med low enter 30000, for races in the med high enter 50000, and for races in the feature range enter 100000. now you can segment by these 4 purse values in self tune and further isolate the distance and race type subsets as well for more precise models.
