Speaking of cores, Ivan Lee was discussing with me this year at a tournament that the "Aramith Duramith Tournament Set" is made differently than the other sets, (within the Aramith brand only). I didn't understand him fully at the time, but it was something to the effect of the center of the ball is made first, and then the rest of the ball is added to it. That's why the numbers on the Tournament Set are perfectly centered compared to other sets (within the Aramith line). He made it seem as if it was a difficult process but they were able to figure it out, and the result is a higher quality ball overall.
Also of note, he's the president of Simonis USA too. He said he has 760 on his home table
<== Loves 760.