Tracy Kenpo: Whirling Thorn On February 8, 2016 By masterkenpodragonIn Self Defense Techniques, Techniques and Forms, Tracy Kenpo WHIRLING THORN : OVERHEAD KNIFE Defense: Left foot steps to 10:30 with a double smoother block driving knife into leg then a right elbow to chin, right claw down face. Share this:TwitterFacebookLike this:Like Loading...