I personally don't find any significant playing difference between any of the premium cue balls - red circle, blue circle or the pro cup measle. Depending on how I'm playing, I can miss with any of them, or I can run out with any of them.
I'll admit I'm spoiled to the point that whatever set of balls I'm playing with (cue ball and object balls), they need to be cleaned and polished before starting a session - regardless of whether it's practicing by myself or matching up with another player.
It plays very well. And, after all is said and done, I think it really does draw a fraction more easily then the Blue Circle, but not as well as the Aramith Pro ( which is actually smaller than the Blue Circle and, I assume, than the Red Circle as well ). At any rate, I like it! Brings back memories, seeing the red circle every shot.