Stopped at our GM dealership for car repairs and ended up with the bucket of wheel weights. During your discussion it was mentioned that on many GM new cars the lip on the aluminum rim was becoming so small that clip on wheel weights would not work. This requires the wheel weights to be installed on the inside of the rim and with stick on weights and the weights were not lead. Since this dealership works on all vehicles that helps gather up the traditional clip on weights.
Another issue are the aluminum rims. Pounding on a clip on wheel weight on the lip can fracture the protective coating on the rims and allow corrosion to to ruin the rim such as I experienced.
Was going to pass on bucket of weights but after hearing this they came home. Slowly and surely clip on weights are less and less. Just thought I'd share this.