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casting such a ball would not work. you could not keep both the dimples even and consistent, and get the ball out of the mold.
thats why they don't work in paintball. in order to get them to demold, the dimples near the seam have to shallower, and so it creates an unequal surface and boundary layer, which basically means, it amplifies the effect of the seam imperfection.
accuracy was substantially reduced.
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