I don't know about damage, but I do remember this. My father loved the original LT-48. He had 2 or 3 of them all drilled different. Even as resin balls were coming out, he stuck with the LT-48. The pro shops hated him, cause the rubber would smell so bad when they drilled them, lol. He used to bowl in old Fire Company lanes (back in eastern PA a lot of Fire houses had bowling lanes, usually only 4-8 lanes, in the basement) but also bowled in a regular center. That center went to synthetics and they made him stop throwing the LT-48 becuase the rubber would leave marks on the synthetic lanes. Every time he threw it, where it landed on the lane there would be a 2-3 inch black mark. He was so upset. This is going back a ways, like early to mid 1990's.
