AZB Osmium Member
Another factor to consider is that the balls can be of different elasticity. I've heard that Aramith tests their carom balls by bouncing them off a steel block and the ones that bounce the highest (most elastic) are reserved for tournament play. I think it is very difficult to measure elasticity on the table because it can be mistaken for a difference in weight.etimmons said:I have a brand new measle and red circle, and fairly new centennials. By my gram scale.... red circle..166 grms..measle..166 grms..centennials..164 to 166 grms..size..red circle..2.255inches..measle 2.254...centennials..from 2.248..to 2.253...I am not sure if the material is exactly the same in all balls and that could account for rolling differences. I also have a red circle that is 10 yrs old...160 grm and 2.244 in size.