I'm glad to hear that you got them balanced, everyone with the roadforce machine say my 37s are too big (bs) so I took it to a shop where they can balance up to a 50" tall tire (well that's what they said) and holy cow what a difference.
Road Forcing does not affect balance. All road forcing does is tell you if a tire is out of round and going to cause a vibration. Breaking the bead down and spinning the tire 180 degrees on the wheel may improve the tires out of roundness, but not always.
Last time I rotated my tires, I road forced my 35s for the hell of it, they ran low on road force, but were out of balance 1.00-1.50 ounces causing a vibration in the steering wheel. Balanced them out and no more vibration. So the point is that even though my tires ran very low on road force, being slightly out of balance was enough to cause a vibration.
We never road force large off road tires because of this reason. If you go to a shop with state of the art equipment and skilled technicians, you shouldn't have any issues.
I don't mean to be a smart a$$, just trying to educate.
http://youtu.be/MeCcWnPOp9I
