I have been trying to figure out the cause of the difference in my sides, to no avail. My right side shoots ahead at rocket speed, but the left side is thicker. I don't wrap, I sleep on alternate sides, and baby the ends on the left side a little more, but no matter what the right side is longer.
I have had to trim the right side often to even it up with the left a few times, but it just sprints out again, like it's saying "take that, left side na na na boo boo!".
When I hit goal length, I will keep a more even hemline.