Here's my comment. It does not concern the rules, but it concerns logic.
If last round you were standing still, and an enemy is 10 ft. due east from you, on this round you can run 10 ft. and attack him, gaining the charge bonus.
If last round you ran 120 ft. due south, and an enemy is 10 ft. due east from you, on this round you can run 10 ft. and attack him, gaining the charging bonus.
However, if you you try to move 10 ft. south and then turn a corner and move 10 ft. east toward an enemy in the span of one round, you cannot gain the charging bonus.
Does that make sense?
Why not change the charging rules so that you just have to move 10 ft. in a straight line at the end of your movement in order to gain the bonus (and attendant penalty)?
