Regardless of all the hoopla, my Tungsten and Palladium sets have been played hard and long for over 2 years. Still look like they just came out of the box. I have Centennials and Tournaments. These Dynaspheres are both as good or better than tournaments and DEAFINITELY better that Centennials, just do not look as classic. The OB's are ALL about the same in wear across all these sets, I see the difference over time primarily in cue ball wear as it takes the most punishment. I know there is a lot of discussion about ArcosII balls as well, and I would put them as better than Centennials, as good as Tournaments although many here swear that is not true. I'm not scientific just play a couple hours every day and the is my real experience.