No need for the old weights. I suppose they can stay on, but the beads are doing the work now.

I forgot to add that I put the tire assembly with the beads on the Hunter balancer just to see what would happen. Machine was giving errors for rim slippage, would not even balance. I think the beads spinning up during the initial measurement was causing confusion and assumed the rim was loose on the spindle.

Before the beads I was getting like 3.5oz weight readings and pretty terrible road force readings, nearly 30 lbs. And yes, my rims were pretty true, 2 were NOS. I measured runout prior. As mentioned those tires were way out of round. But they are so soft in the tall sidewall that I guess you can get away with it on the antiquated suspensions back then. New car, no way you could.