Hi CosMos,

An obvious question is how do place your best when you do not know the SP of the horse until the race has been run?

In most cases it is not a problem as the price will be far enough away from your minimum of $3.70 but what happens when a horse is being supported and it is on the cusp of your minimum a minute before the race jumps. Do you back it or not? It may stay $3.70 or it may firm further.

This is a dilemma when you use SP as a rule in any system.