[Physicist]

One can imagine a more dramatic locus for the shoe, but would that be any more persuasive?

Forsooth! The more resistance to the shoe, the freer the will.

[Right Wing Professor]

Forsooth!

'Sore tooth', spoken with a shoe in your mouth?

[PatrickHenry]

The more resistance to the shoe, the freer the will.

The ... uh, ultimate shoe re-location test would probably be regarded as a demonstration of insanity rather than free will. Your experiment would seem to fail, just as it approaches certainty. Free will, therefore, can never be demonstrated.