If you're an experienced purple belt, there is now a DVD set aimed directly at you, with the intention of suggesting some ideas to help you develop into a brown belt. As in Purple Belt Requirements
, a concept lies at the heart of the DVD, but this time it is pressure and efficiency rather than combinations (though combinations are still very much in evidence). The gap between teacher and student has shrunk, so that the instruction is more like a discussion amongst peers than a lesson delivered to schoolchildren. The assumption is not only that you know the basics, but that you have an established game which you understand very well. There is a good reason why this is called Brown Belt Requirements
, so I would recommend you don't tackle its contents until you're at the right level.
Full review here