These are not systems per se, but rather an in depth look at form analysis as it pertains to LAYING horses to lose their races.

The key components of these systems are along the lines of "building up evidence to oppose" market leaders (the shorter the price, of course, the lower the liability for layers) by finding enough weaknesses to conclude that "Yes, this horse is worth opposing at the price."

Both of these manuals are extremely well written and offer solid information...