Pickoff Attempt At 2nd - Balk?

[Spence]

R2.

F1 spins and attempts to pick off the runner.
Throws to F6 who is , say, 10 feet from the base.
Legal?

Balk rule says step directly toward the base. Does this satisfy it(I realize it might be a HTBT). If F6 is in his "normal" defensive position would that be a balk?

Trying to see what the limits are here.

Thanks