I think I'll just stick with "pick 4" for now, it's much simpler. Note that the 4 are just things your character is best at in general, they don't have to be given any specific value, and you can have less than 4 if for some reason you want to. If I think people are trying to "powergame" the RP or something silly like that, I might take further steps, but honestly I don't expect any problems with god-moding or the like. Just use common sense.