Home / Shop 4+30 Percentages and Profitability $48.88 Home / Shop 4+30 Percentages and Profitability $48.88 Model Number: 6853946 Maximum quantity exceeded Minimum purchase amount of 0 is required Maximum purchase amount of 0 is allowed 48.880 10000000 Manufacturer: edbain.com Description Ed Bain's 4 + 30 Percentages and Profitability BookBook explains the horse racing statistics that Ed Bain developed and how uses them to make bets.Exact reprint of Ed Bain's 2001 Book