I have had success using the arbor press at work to break the beads on old tires! I also use ceramic balancing beads instead of weights. Just vibrate the beads in through the valve stem with the core removed after the new tire is on and seated. For the cost of the beads it makes it easier and faster and I have had no issues with balance on wheels on my F4i. No unsightly weights on the rims either. a few shops around here are not balancing at all, they just use the beads.