Questions about cyber-replacement. Options

[Guest_Seifer_*]

Just a couple of questions regarding cyber-replacements that have me slightly confused.

-Is there a reason why a cyberarm would have its own specific Body rating that's seperate from your own Body attribute if the rules don't go into specifically damaging a cyberlimb? I mean, if I have a Body rating of 5, but my cyberarm has a Body rating of 3 (the normal attribute), when I get shot in the arm do I really get 2 less dice to resist the same damage?

-Segueing to another point; why is the base attribute rating for Agility/Strength on a cyberlimb replacement a 3? So when a Troll loses an arm (with a minimum metavariant strength of 5, average being 8) and has it replaced, the arm is calibrated to the strength of an average human being? Is it also shorter than his other arm?

-Why do you need a cybertorso for more than 3 points of AGILITY augmentation to a cyberlimb? I can understand Strength (harkening back to the days of Man and Machine where you needed to reinforce your arm or get a cybertorso to increase your Strength to retarded levels), but Agility?

-Why are cyberskulls so hard to come by when they're so ridiculously pointless? Well, other than the "cool" factor of an obvious chrome cyberskull.... :D

I'm just curious what anyone else thought about this. :)