I think it would be a reasonably easy thing to test if you have access to the stuff needed.
Find a tire shop that they know you at and borrow all their wheel weights and stick the entire lot on your car's rims
Then you can test and see how much that changes things. It should be easy to add a few pounds to each wheel so on a small car with small tires it should be measurable if it actually does anything. You could also measure the changes in how it does pulse and glide, if it glides farther for just a tiny bit longer pulse or if the longer pulse is equal to the longer glide.
Just keep track of where the old wheel weights go so when you take them off you don't take the originals off.