Try reversing your picking too. Instead of starting with a downstroke on a riff, start on an upsroke and do everything opposite of the way you'd normally play it.
Not necessarily the way you'd normally play, but if you learn all your scales this way it makes it easier to string them together up and down the fretboard. ie, you aren't limited by always starting a riff using either an up or down stroke.
It won't matter anymore because you'll know both equally as well.
(sorta like being ambidextrous except with just one hand)