There is, i tried exact amounts, less... more and nothing worked for me. Went back to sticky weights, used a good non residue brake cleaner before sticking the weights on (hexane) and i havent had any issues since, but the reason i went to beads and sand in the first place was because i kept loosing weights
About all of the tire shops around here quit selling the Equal and started using Dyna Beads. I love them. I had an old set of General tires that nobody could keep balanced and Dyna Beads straightened them right up. Another advantage is you don`t have to worry about the tires needing rebalanced as they wear.
Were the tires balanced at all without Dyna Beads? If you follow the instructions they recommend removing weights a little at a time to make sure you do not have problems. I had one set that needed weights and beads to balance.