Yeah, I was using too much logic thinking that the normal human body must be conditioned in a sense to be able to handle the strength of whatever your doing, like having your skeletal and muscle structures be able to handle lifting like 500 pounds or stuff like that and not going with the rule of cool. hahahahahaha
Actually, that is exactly the logic behind that.
You don't need to be trained if your Limbs are - Keep in mind a full cyberlimb will replace the shoulder- or hip-joint and reinforce involved bones and muscles.
The limit to "racial maximum" means your limbs can only do as much as the meat part of your body can take.
This is why Cyberlimbs don't improve your limits, which on a 4-Cyberlimb character can indeed pose a problem.
And that's where redliner comes in: You ignore those limits. Yes, that might overtax the limbs, especially if they are already damaged, but it's also your meat body losing:
Hair-thin fissures in bones and sinews, minor sprains and ruptures; Things that happen when you purposefully go above and beyond what is normally possible. In return, it also increases your effective 'natural' attributes, thereby raising limits, walk speed, etc. Same way that exceeding your limits with drugs is reflected in crash damage, basically.
As for your newest build, afraid I lack the time today for good feedback. Starting to wonder if the legs are really worth it, though, as opposed to, say, just lower legs to save essence (best essense to capacity ratio). Though of course for a Singularity seeker it's kind of a must. ^^
I'll look again later.