Upper Body
Physique: 55
Reflexes: 60
Aim: 55
Given that it has very high Damage resistance, I think a comparative Tease weakness is appropriate, especially since that's where the sensory organs are.
Is Physique used for any of the Upper Body's attacks? If not, giving it a comparative weakness to resist Physique-based Status attacks (ex: Headbutt) makes sense. If it is, base damage could be bumped a bit to compensate.
Leaving Aim as is, because the Ki-Bow is kind of ridiculous.
Lower Body
Physique: 65
Reflexes: 55
Aim: Irrelevant?
Tease/Pheromone Resistance: 50%?
Takes more damage, but harder to Stun or Tease. Still vulnerable to Drug. Should it be vulnerable to Psionic?
Is Aim used for any of the Lower Body's attacks? Aim is also unique in that it isn't used to resist anything, so far as I know.
If we really wanted to be realistic, the Upper Body should only be Tripped if the Lower Body is, and the Lower Body should only be Blind if the Upper Body is.
Would be a PITA to code, I'm sure.
General Notes
The PCs natural stat cap at Level 12 is 60. Cybernectics can increase that by +10, but there are a number of
other Combat implants players might want instead. They also changed X Chance weapon flags so it's a vs Stat check instead of a flat chance.