That sure is convoluted.

Actually, the connectors are 10 cap for knees and elbows, but the modular limbs are just limb -2, so they would have different capacities. I don't see the problem.
So in short, did I understand that right:
Either, you buy a modular limb, to be attached on a real bodypart, or you install a modular connector in a cyberlimb, and then install a completely regular cyber-sub-limb?
?