Balance? Not in Stormbringer 1e. That was, for us, part of its charm. But the fact that two players could sit down to roll up characters and one end up with a blind beggar from Nadsokor and the other a Melinibonean Noble Warrior Sorcerer Priest with bound Demon armour and weapons did make writing adventures a challenge. A very Ken St Andre game.
Modification of a character's attributes according to where they were from, iirc, carried over into at least some versions of King Arthur Pendragon. Its an option I like for humans only settings as it allows some differentiation.