This program was designed to address a common problem that many drummers have, including some advanced drummers, which is an incomplete understanding of the double stroke roll. . Each exercise is specifically designed to work on a different aspect of this pattern, and by working through this book you will develop your double stroke roll to a much higher level. But it goes much further than just improving your speed and power. The main focus of this book is to give you a deep understanding of the possibilities of the double stroke roll, not to learn how to play it at warp speed. There are plenty of resources out there that teach speed, so this book takes a different angle.
As you move through the book make sure to keep reviewing earlier pages. Start slowly, work diligently, and you are sure to see the results you are looking for. Reading through a book full of double stroke ideas, and actually putting the time into mastering these concepts are two completely different things.