Per 3: 1 person at the net, 1 person on the back line, 1 person in between.
Person in between goes to work, gets ball from person at the net, OH back. Turns around a few steps backwards, ball from back line, OH back. Turn back around and repeat (20x reception).
Can be with or without stroke.
In pairs: 1 person at the net and 1 person on 3 meter line.
Ball is tested from the net to 3 meter line, BH back.
Move backwards and ball is hit to backline can also be a touch, OH back
Back line is tapped by this player, person at the net plays the ball back to the 3 meter line with 1 control key (20x change)