Having seen both, and used a curve, I feel the Curve gets down the lane easier, storing more energy for the backend part of the lane, while the epicenter rolls earlier. IMO the epicenter bleeds more energy in the first 25 feet, and needs a higher volume of oil to show its true colours,
I would suggest the Curve to be the more versatile of the 2, for the above reasons.
Dave W- ''As with all Seismic balls, the Epicenter should be more versatile on patterns other than a cake-shot,'' could you please explain this statement?