Two lines about 15/20 yards away from one another.
Pick a force (in this case, force is flick).
First player initiates a cut to the break side.
Player down the line makes a break throw to the cutter as they are making a hard under cut.
As this is happening the next throw is set-up.
The initial cutter goes to the back of the other line. The one who threw is now cutting.
Continue like the first cutter.
Whoever is last to throw will make the next cut.