The twister itself is a single move but the truck series that leads into it is a DEEP system
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Mastering the Twister is by far my most favorite DVD that I own. Buy it asap.
It may surprise some folks, but Rubberguard , lockdown half,& twister side is not the system. They are merely pieces of the system. The rabbit whole is DEEEP & that's just scratching the surface:)