I have already searched a lot, and from what I can gather: all plastic dice are made using molds which leaves you with either an flash gamescience or rounded edges chessex .As an alternative there is machining dice, I have not found any company yet that does this for plastic dice, but it apparently is done with aluminum metal dice. Next step is the ingraving of the numbers in the dice, meaning that on a D20, the 1 is deeper than the 20 to make up for the 20 being a larger in volume. Perhaps this is why Las Vegas is always accused read review and not NJ. Isn't the official stance it's ok to be biased as long as nobody knows the bias and the bias is random? I take resentment from my understanding they're not even checked publicly to prove dice are what they're supposed to be. Just seems either lazy or suspicious to me. The PGA checks equipment the pros use to make sure they comply,