I said it 'might' help. I myself do not generally balance tires and driving 3 cars now without a single balance weight on them at all. The cars will run 80 mph all day long.
I said it because a balance condition can aggravate springer type suspensions, it's inherent in the design to modify other oscillatory motions. Balance and out of round are two absolutely different things, you cannot rebalance an out of round condition to run smooth, it being impossible.