TY..same here... never noticed the difference, either. Even between a valley purple Bar Box ball(duramith) and the green logo aramith bar box ball.. I do have a 50-year-old set of Gold Crown pocket balls, which are made with phenolic resin.. probably by Hyatt in the USA. I believe they were the precursors to the crown standards made by aramith. The Brunswick crown pool balls come with a blue dot cue ball, which is lighter than the set.. you can get a lot of Zing out of that cue ball, but I use the measles ball with that set, and they play great. Gianni