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Well, the old system has two major problems: it's quite random, and some characters' stats get boosted to monstrous levels, while others remain within normal limits. It's not very fair when someone is limited to a base dodge = agility (and, at best, can have agility x2 if they take a specific perk/skillset), while their neighbor has dodge = agility x4. However, this problem can be fixed without significantly changing the core mechanics. Moreover, its solution will somewhat alleviate the first of the problems I mentioned.