What if what you think is perfect run, actually isn't perfect run? In Barnstorming it seems possible to score more than once per barn. See video on YouTube. So real perfect run may not be basically straight line from barn 1 to barn 10, but maybe barn 1 to barn 9, or barn 1 to barn 8 using cheat/trick/bug/glitch to get score for some barns more than once.