You unintentionally, and mistakenly, referred to wanting to discuss a cue ball’s feel which is really non-existent.All aramith cue balls I tried on this thread were 2.25” and within 1 gram of each other, with red circle and red logo being 169g and the purple logo being 170g. So yes, it does come down to composition and hardness and the characteristics of those two items, which is exactly what I wanted to discuss.
It sounds like you are really more interested in discussing different cue balls performance, roll, etc., which is a
common observation when a pool player unexpectedly has to use a different cue ball & prefers a certain version.
As long as the cue ball weighs less than a gram wt. difference with the object balls used, it’s really inconsequential.