I run my MT's on Ford rims with zero balancing done to them and they are OK. Remember, these are used and at this point getting fairly old. You will be hard pressed to get one perfect for something of this age and size with conventional weights. Adding a Hummer rim almost guarantees slip on weights being useless due to not being able to add enough of them.
With any tire balancing you have static and dynamic. Beads, powder, BB's will only cure static imbalance issues. Static issues being on spot across the tread width is heavier than another which creates a wheel hop while spinning. The additive will seek the opposite spot and cancel out the problem.
Dynamic imbalance occurs when a single spot on either the left or right side of the tread width is heavy and creates a wobble while going down the road. Additive will not solve these types of problems as it cannot stay to the left or right side of the inner tire. This requires correction by either dynamic spin balancing or rotating the tire on the rim to minimize the runout.
Another important thing to remember is that none of this will cure a tire that has a shifted belt, runout, or bent rims. No matter how well you balance a tire, when the softer sidewall hits the ground the tire dips and causes a vibration...period. Welcome to old tires! Another thing that aggrevates this is worn out steering and suspension parts.
I've had great luck with BB's (which any additive will work) but it only does so much. It worked great on a set of 37's but it also did nothing for a set of 14.5" wide swampers that have been thrashed.
Just keep this in mind when spending money on wheel balancing.
