Hi Dave. Believe it or not those late odds changes are due to whales betting large sums of money at the last second based on what they perceive to be value. They create their own templates model on the works of Bill Benter and Dr Bill Zimba. I was with a few of them last yr at Sar.[1 is a horse owner].None of their bets was based on inside info but strictly the public betting patterns. Too rich for my blood.