> I really have no idea if the phenolic damages the balls,but it seems like it would leave some kind of scratch. The pics of the cue ball that Cheez Dawg posted with the marks in it are very familiar to me. In the dive that calls itself a pool room here,and several others,those marks are almost always caused by a high-speed collision with a protruding screw,nail,or tack used inside the pockets themselves. In pool rooms with nice fresh Gold Crowns or Diamonds,I've personally never seen marks on the balls in that pattern. One thing you can do is get a 3-sided nail buffer from your girlfriend/wife/Wal-Mart,and use the middle grade on the mark,trying to follow the length of the mark itself the best you can,and see if it disappears or at least erases any coloring in the mark. It doesn't seem possible for a tip to make these marks unless it had an extremely sharp edge,was totally flat,or was made from tool steel. Tommy D.