To be completely honest, Pellegrino, I am not a fan of numbers in this kind of game. I don't think they're necessary. The SPECIAL system is about game balance... Which we don't need in the slightest. This is an abstract game, we don't need to compare numbers between each other and the NPCs, we don't have derived statistics or hit points or anything at all. The numbers make the characters limited, when they really don't need to be.

Can we just say which of our character's SPECIALs are above average, or below average, or really good, or really bad? More wriggle room, less "well, my Strength is seven and yours is six, so [i]obviously[/i] I can overpower you, and you can't argue against it!"

EDIT: Then, we as a group and you as a GM can decide whether a character is realistic/reasonable or not.