They didn't have "NO" cores, but some had pancake cores. Not sure when they came into fashion. If you put a lot of negative side weight or bottom weight (and not 1 lb either, John ) you could easily make balls do "tricks" like this, with slower ball speeds and spinning, rather than rotating at the release point.

Haven't you guys ever seen older men and women with slower balls speeds whose balls would actually do this, to a smaller extent, of course???

People forget how good a bowler Andy Varipapa actually was. He got into so many movies showcasing bowling and having a ton of fun with the audience, making bowling popular, that people began to think of him obly as an clown, an entertainer.

Well, to counteract that, he entered one of the most famous of all Bowling Professional tournaments, the All-Star. This was THE most serious competition for any bowler in the World, literally. It was a one week, 100 game marathon. at the age of 55 and 56 (or thereabouts) he won it not just once, but TWICE.
Try bowling 100 games in a month, 25 games every week for 4 weeks. The current PBA guys this week will have bleeeding hands after 54 games. This was 2x as many games!!



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"None are so blind as those who will not see."