[Burner]

Burner,

Of course, in your example, I concede there to be very little difference.

However, the single arm example excludes (without massive strength) the structural possibilities that having two hands on the club bring to bear. If, for instance, the left arm were rigidly attached to the sholder, there would be a large difference in flailing action as there would be much more angular momentum (from the turning body) driving the flail.

Any questions? Golfie

Yup! No, a statement more than a question.

If the left arm was rigidly attached to the shoulder it would not be a flail - more a spoke attached to a spindle.

And, whats more, the spoke and spindle in human terms is not capable of generating anywhere near the clubhead speed that a flail could.