Idk about d6s, but for d20s it skews significantly to 1 side more than the other when weighted. For dnd this is noticeable since you will roll way more 20s than 1s, even if you are also likely to roll low numbers because of how the numbers are laid out. This is why spindown dice, where the numbers are all adjacent to the next in the order, are generally frowned upon in dnd, because even a slight misbalance can be super noticeable to the average if it's on the low or high side, let alone if you have a weighted die.
D6s it can make a mild difference but they are so easy to do a balance check (glass of water trick or a gimbaled axis spin) that if you even remotely suspect it, it takes minutes to prove.
Source: I organize Warhammer / Tabletop Gaming tournaments and people are fucking weird
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u/justagenericname213 5d ago
Idk about d6s, but for d20s it skews significantly to 1 side more than the other when weighted. For dnd this is noticeable since you will roll way more 20s than 1s, even if you are also likely to roll low numbers because of how the numbers are laid out. This is why spindown dice, where the numbers are all adjacent to the next in the order, are generally frowned upon in dnd, because even a slight misbalance can be super noticeable to the average if it's on the low or high side, let alone if you have a weighted die.