If you choose to save AP you would need to be hurt for those AP as well.
That would get complex real fast given the AP saving system. You could get damaged twice for the same AP. You'd need to keep track of AP that already proc'd and those that didn't. Not terribly difficult on a computer, but it might not be intuitive. You go to spend AP next turn and sometimes you take damage, sometimes you don't. You'd have to color AP from last turn in the bar someone. Potentially for multiple turns.
