Anyone seen these? http://www.oncoregolf.com/
World's only hollow metal core golf ball... My dad bought a dozen of these and we tried them last round. You really couldn't tell a difference in feel or sound, and when I hit it, it was reasonably long. Given the conditions, windy and cooler, it's hard to know if it's as long as anything else, but I was in the general area i remember being with other balls on holes I was playing. Greens were too dormant and hard to know how it might do there. But when Dad told me it had a metal core, I was surprised. I would not have guessed that by how it played, felt and sounded.