There are many systems that use elements of what we are calling "sectoring," also known in JKD  as "time-hits," (simultaneous counter-strikes). For the first time, sectoring is being presented here as autonomous body of knowledge beyond mere "entry" moves. This includes the inter-relationships of possible time-hits and how those choices are made moment to moment. Sectors are also shown as a back-up for other tactics such as trapping and joint locking. These skills cross the boundaries of JKD and Kali.This product is manufactured on demand using DVD-R recordable media. Amazon.com's standard return policy will apply.