The Paradigm had the strongest mass bias in any ball made by Storm that was released in the US. The EOX cover is MUCH cleaner than the R3X of the Anarchy. Plus, the additive in the Paradigm made for a unique shape on the lanes. I have a Paradigm with probably only 20 games (so it's not that it's used up) on it and it doesn't slow down near as fast as the Anarchy. Much cleaner through the heads. The Original Shift cover (pearl particle) would probably be the closest to the EOX of the Paradigm, while the core of the Gravity Shift is closest in numbers.