My main crafter (18) has manipulation of 50%. I don't think this has always been the case.
Over the seasons she's picked up some injuries. Currently the health tab says:
Left Eye: Bionic Eye
Right Humerus: Shattered
Right Leg: Simple Prosthetic Leg
Also:
Pain: None
Consciousness: OK.
As far as I understand, none of these will be reducing the manipulation, yet she's at 50% only.
Any idea why?
It's probably the humerus, if your arm is shattered then it's pretty hard to do anything, and you only have 1 working hand, so your manipulation would be at 50%.
Right humerus is your arm. That'd be the problem.
The only problem here is that having a shattered bone (https://en.wikipedia.org/wiki/Humerus) somehow causes them no pain.