Mazur Saratoga products

[hockey2315]

I'm thinking about purchasing a few of Jim Mazur's products for the Saratoga meet and was wondering if anyone has used them and, if so, would recommend them . . .

What does each book (regular Saratoga Handicapper, Trainer Detail, and Trainer Stats) include and can I get by with just buying one or two or should I get all three?

Thanks for any insight. . .