I've had some serious issues with the KO2s and balancing them. Even with all tires requiring less than 10# of road force to balance the 4Runner still shakes like crazy between 45 and 60. I've been through 8x 265/70R17, and 12x 285/70R17 on my 2012. I'm never buying them again.
Now offroad, they are amazing. Been through quite a bit of stuff that I didn't think we could make it through and never had any issues.