I have this book.
It is a good book, and the weighting process does (as I recall) make sense. However, I think the book below is much more modern and contains a more powerful approach.
Precision: Statistical and Mathematical Methods in Horse Racing
If you wanted to borrow the Brecher book from me, I would be willing to accept a hefty deposit which I promise to return when you send back the book.
If you are interested, just email me.
Dave
