Form a 12x8m rectangle. Chose 2 outlet players (E & F) who work on each long side. Remaining pairs line-up opposite ends behind (A & B) and (C & D).
(A) performs a double play with (E) to the left
(A) then passes to partner (B) who times their lead to catch on-the-move.
(B) performs a double play with (F) to the right, then finishes the pairs turn by passing to (C / D)
Either (C or D) can be used - mix it up!
Now pair (C & D) work the other way. Link players (E & F) shuffle left and right to be positioned correctly to receive.
(C) a double play with (E), passes to (D)
(D) a double play with (F), passes to next (A / B)
After 60-90 seconds, rotate stationary players.