The SurD and ShoreD (spelling may be wrong, but close) came in a specific time sequence, and I don't remember which came first. Both were caramel plastic balls from Columbia. After the advantage of soaking was discovered, Columbia brought out a super soft ball, which I think was the SurD Pro. Soon afterward, ABC instituted the 72 hardness spec to bring some sanity to the soaking that was going on. Since the SurD's hardness was in the mid to high 60's, that made it illegal. I had one of them, and it could be scratched with a thumb nail, but it really reacted (for that day) on the lanes! I set it up in an old bag for a few years, and when I went to see what it looked like, it had about 1/4" of gooey resin on its surface. I threw it away, sure wish I'd kept it. But anyway, after the SurD became illegal, Columbia brought out the ShoreD, which had a hardness just above the 72 cut off point. I never threw one of those. Regarding the old Crown Jewels, when they came out they and all plastic balls were considered "womens balls". But one of the better bowlers in town bought a gray CJ, and all of a sudden he was putting up scores he'd never been able to post before. He was a full roller, and we just thought he'd hit a lucky streak. Never guessed the ball was softer than the rubber balls others were using. -- JohnP