I'm planning on replacing the the frt tire in the near future on my bike.. I recently talked to a guy about good shop for having a tire mounted & balanced . after suggesting 1 , he noticed my rims have the wrap around spoke weights for balancing, He mentioned I should try or ask about these differant weights for the wheel balancing, he called them Dyna Beads some kind of coated pellets that is put inside the tire before it is mounted on the rim . He explained that when the tire rotates the beads move thru centrifugal force to the area inside the tire to balance it. I told him my rims use a tubed tire setup on them , he said its still possible they remove the valve core and put the beads down the valve stem.. Has anyone had any experience or know the Pros and Cons of using this method to balance a wheel ??