Redlining Question, Not a horrible abuse - honest! Options

[Heath Robinson]

I'm considering a character who has a customised Cyberhand with human-maximum Strength and redlines it to do some impressive crushing feats, and I was wondering whether the Body stat for the hand itself or for the character's base would be used, the redlining rules are unclear on this in my copy of Augmentation. This is most likely into GM ruling territory, but I'm asking in case there's some unequivocal solution.

I'm assuming that crushing some body part is going to be doing Str/2 damage as well.

Of course I'll probably be loading the guy out with some other ways of doing damage, but this hand alongside some decent social skills would probably be interesting and effective.