Three-person group. Roles: Striker, Thai pad holder, Grappler. Each person takes a turn being the striker: punches 30 sec, grapples 30 sec, skip knees 30 sec, grapples 30 sec, Thai kick (twice each leg) 30 sec, grapples 30 sec. Finale: 10 push-ups. Roles rotate: The striker becomes the pad holder, the Thai pad holder becomes the grappler, and the grappler becomes the striker. Drill continues for a total of three 3-minute rounds so that all participants get a turn being the striker.
No conserving. As a result, the striker gets constant work for 1 full round.
(Note: This video demonstrates the only first time through. Two more times follow.)