And what did I say? 61 9ft one piece slates 30mm thick, right? I just installed 3 more 9ft Diamond ProAms at Brothers Billiards in Billings, MT. 2 had 1" thick one piece slates, and one had a one piece 30mm slate, I know for a fact, I set them down by myself, my first indication there's something different is how heavy the table is when I lower it down to the legs, and then I check the thickness of the slate on the one that made me feel like I was about to break my back as I lowered it down, YEP 30mm slate!