PBUC requires the batter to be in "the" on deck circle. The BRD quotes Fitzpatrick as requiring the next batter to remain in his circle. In upper level OBR ball I would not let a batter use the opposite circle unless the organization allowed it for "safety purposes". Of course, it wouldn't be upper level if the on deck batter needed to be protected from his inattention. Or possibly the circles are too close due to field dimensions.
FED, as well as NCAA, does not want batters near the plate when the pitcher is warming up: 3-3-ART. 3 . . . Players loosening up to bat shall remain in the area of their team's on-deck circle while the pitcher is warming up (1-2-3). PENALTY: The umpire shall issue a team warning to the coach of the team involved. The next offender on that team shall be ejected. 3.3.3 SITUATION: As a pitcher is warming up, the coach of the team at bat calls the next batter over to him for a visit near home plate. RULING: A member of the team at bat should not be allowed to be any nearer home plate than the on-deck circle when a pitcher is warming up. COMMENT: When it is apparent the pitcher has completed his warmup or when summoned by the umpire, the next batter may come to the plate. A player may report to the umpire, who is near home plate, but the player must return to the area of the on-deck circle.
That would work for me. But if we are going to geek it up, more than I have semantically, we need to know the processing speeds of the light and sound inputs to the decision and perceiving centers of the brain.
If you call a runner out at 1B and tell the manager that the runner didn't beat the ball he might have a rules protest although I do't know of a manager that would pick up on it. If you tell him the ball beat the runner you have a judgement call.
It can be a matter of preference or the batter's handness but most of us that do mostly 2 man where we are on the 1B side continue to like that side in 3 and 4 man for the look at the swipe tag on the steal.
In OBR now, semantically a tie does go to the runner on a forced base or 1B. I would hope no umpire would ever judge a tie. But you shouldn't scoff at Backmons knowledge of the rules or maybe his unknowing espousing of a myth which is now true in OBR.