All Storm solids seem to react well to surface adjustments, probably more so than any other brand I've used. (Same good qualities for Storm-poured products like Roto or older DynoThane balls)
I'm convinced you could take the Curelyon or AccuTread cover stocks (XXXTreme is AccuTread), drill as many of the same ball with either coverstock as you want, and you could make infinitely varying balls with identical drills just by changing the coverstocks.
Jess