https://www.theguardian.com/science/202 ... ay-experts
While aficionados of the pursuit favour thin, flat stones for long-distance skimming, the researchers’ mathematical model reveals that heavier, potato-shaped stones can achieve more dramatic results, which blast the rock into the air.
“Try some wacky stones and see what happens,”
bulkier stones, even if thrown well, are not the sort to skip across the water a dozen or so times before disappearing beneath the surface