Been there, done that.
You need three things to make your FSP system work, total management dedication, the people who can put together a hardware/software combination that is actually functional enough to do the job, and the recommendations of this book.
Reading and following the guidelines in this book will help you to understand how to keep your most profitable customers happy and coming back. It will also help you eliminate your losses from "cherry pickers".
So this book not only tells you all about "Customer Specific Marketing," there is enough information to be able to implement the system with the help of a good IT person. Everyone in retailing should read this book and reap the rewards.