RPD: Your quote from Rule 2.0 leads me off track here a little bit:
Runner on 1b. SS fields a ground ball, thinks about trying to get the force at 2b, even turns his body and feints to throw, then re-sets himself and throws to 1b, but runner beats it. I always thought this was a FC becuase his move toward 2b was a "choice" and delayed his throw. Doesn't appear to be true. So instead, a single for the hitter?