What tradockrat said.
Fighting more than one person is and should be an exercise in chaos not to mention aerobic fitness for the guy who's taking his or her turn in the barrel. Of course you start slow and simple and ramp up. There are teaching progressions for this sort of thing. But the goal should be continuous free-form attacks. Fighting two is different than fighting one. Fighting three is different than fighting two. You can't learn the later parts by fighting one person at a time three times.
Fighting more than one person is and should be an exercise in chaos not to mention aerobic fitness for the guy who's taking his or her turn in the barrel. Of course you start slow and simple and ramp up. There are teaching progressions for this sort of thing. But the goal should be continuous free-form attacks. Fighting two is different than fighting one. Fighting three is different than fighting two. You can't learn the later parts by fighting one person at a time three times.