They're balanced, I checked them myself after I got them back. It's just the tread I feel.
I put about 250 miles on them yesterday - about 70 of that on fire roads and in the mud. (I love living in Charlotte, NC - it's a little over an hour to get to the mountains!) I really like these tires in the dirt. Sure, I still know it's a 500lb monster when she breaks loose in a corner... but the power slides are so much fun, and powering out of a buddy corner with that 180 rear slinging dirt... gotta love it.