Recently, I saw Efren making a few shots during a tournament in Japan. I noticed the table had white rails with green cloth but that is not the question. The table had a White line across the headstring and a white line going from the middle diamond (Site) on the foot end to the spot area. I understand the purpose of these markings but I noticed they were very bright and looked perfectly straight. Is it likely that they were done with actual paint? It did not look like chalk as it did not seem to have any over spray or smearing going on. I would wonder if paint or something like a sticker might effect ball roll. What do you all think of the table marking concept?