A fool-proof formula for picking winning horses on a computer disc is the Maguffin sought by Cleveland and others. A fool-proof formula for picking winning horses on a computer disc is the Maguffin sought by Cleveland and others. A fool-proof formula for picking winning horses on a computer disc is the Maguffin sought by Cleveland and others. A fool-proof formula for picking winning horses on a computer disc is the Maguffin sought by Cleveland and others.