Btw, this also highly emplies that most effects that reduce these Attributes (the Reduce Attribute Spell, f.i.) would have only limited usage against Characters with Cyberlimbs - which makes sense, because why would drugs, illnesses or healths spells affect them?
However, once your natural Attributes get reduced so much that the difference between them and the Cyberlimb Attributes becomes higher than 4, you can´t use their full Strength and/or Agility anymore. Which also makes sense, because you still partly have to rely on your natural muscular and/or neurological framework to use them. Although I wonder if we get more detailed rules for Full-Body-Cyborgs in the future, because if you go that route, it should have an effect on some of these limitations.