Groups of 3 each have a ball and line-up at (1)
Ball starts with (A) in middle of first group. (B / C) lead out, with (A) choosing one to pass to, e.g. (B)
(B) passes to the 3rd player in the group (C), who holds their run before leading to the other side of the lane
Players lead to a different side each time, so the ball zig-zags down the lane
Players continue passing across the court. When they're close to the opposite sideline, they must pass into the centre third, then work back the opposite way in the same manner.
Finally, move into the final 1/3 and work across that area.
Trio end up in the opposite corner from where they started, and wait there. Once everyone has been through, restart with trios working in the opposite direction through the 1/3's..
