[greymule]

The exception would be if the stolen base took place on the pitch upon which the batter became the BR and then the BOO was properly appealed.

Therefore, is this the correct ASA ruling?:

Abel on 2B, no outs. Charles bats in Baker's spot. On ball 4 to Charles, Abel steals 3B. The appeal that Baker failed to bat in the proper order is upheld.

Baker is out and Charles bats again. Because Abel's advance took place on the pitch on which the batter became a baserunner, Abel must return to 2B.

This may well be the correct ruling, since "any advance" seems all-encompassing, a departure from the now-deleted "as a result of the improper batter becoming a BR" and the older "because of the improper batter's advance to 1B." And with the removal of those clauses, "any advance" could be interpreted to mean advances that occurred on previous pitches during the at bat, though I doubt that ASA intends that.

I wish this were clearer.