Ah, there you are, I recall that proposal, I didn't remember that was you. And that came across to me as more of a 'your idea won't work' than 'there are more than one camp on how cyberlimbs work', but that could have been failure on my part to understand.
A first glance of the links you posted shows you've given this a great deal of thought, and I plan on reading the discussion further. But still, that is more of a game mechanic fix, which is perfect if that where you see the RAW flaw. My issue is less with that, than making things jive between meat and metal with a explanation that works for me. Clearly plenty of people have no problem with things as they stand, and others object, so for me at least, this is more of a 'this is how I'd do it' kind of thing. There are people with suspension of disbelief issues with grenades, or sniper rifles, or even DNIs, we all have our peculiarities, and focus on those things that glaring dont work for us.
As for my games, as I'm not the GM at the moment, I am playing RAW.
Reading replies in one thread, it seems A4BG and Xenon seem to agree at least part of my idea, setting the limbs attributes to the character's natural attribute, with a cost approximating that of Customization.
When I think about how these things are supposed to work, I see a mechanical prosthetic that is customzed to fit the user's body. And I have a problem with this customization taking a limb's attributes higher than those of the body. I don't have a problem with ending up with higher stats through Enhancements. So I'm not looking for statistical limitations. What you propose, ZeConster, seems to suggest that a cybernetic limb should only be able to function so much higher than it's flesh body without losing functionality, balance, or without ripping itself off. Not putting words in your mouth here, just an interpretation.
Another of my issues, as I've stated repeatedly, and no one has yet offered a solution after countering my suggestion, is how it it's possible for a maximum enhanced limb to do less unarmed damage than a flesh limb(with proper Bone Lacing). Then I got to thinking about how and why players purchase limbs for their characters. Not why the characters do it, why their payers do. For me, every character I've ever created who had such a limb lost their flesh one in battle, and either could not afford a cloned, or figured that if they lost Essense from a Deadly wound anyway, why not fill up that void with a limb? So for me, and this may be coloring my perspective here, limbs are not purchased to have a kick ass stat, they are an after thought, an accident, a repair. But then I realize there are many players who get them solely for the stat bump(and some because they are cool, etc). And for those characters, making a cyberlimb jive with a flesh limb is not an issue and RAW work just fine.