Volleyball drill: negotiated technique

All 1 ball and how many times can I hit, counts for the club of a hundred! Technique arms straight and from the knees. Get under it. 4 teams with 2 balls. A and C stand at the net with a ball. B and D stand at the back of the field. A throws to B and B keys to C. C throws to D and D keys to A. This has to be done at the same time! After 15 balls change. Pay a lot of attention to this, at an angle so right leg in front and shoulders tilted. Trainer throws ball over the net to A. Starts from the net and moves backwards. A tests to midfield and B comes in from the sideline. B passes high ball along the net and A attacks. Accent is key, attack is bonus. So if the pass is not good, no attack.