[DouglasCole]

Last August, I suffered a three-level disc herniation at C4/5, C5/6, and C6/7. The upshot of all that was a 30% reduction in the strength of my left arm. If I'm normally ST10 or 11, my left arm was 8 or 9, respectively.

It manifested in weird ways. Most stuff...even my martial arts, including korean kumdo, didn't seem much impacted. That's because most of the time, you do core stuff, and the more you train, the less you use "arm only" moves.

I got tired more easily.

And when I was doing single-hand stuff, like pouring out noodles from a pot...I would always nearly drop them, since my "what can I do?" calibration was 30% higher than what I was able to actually lift.

It's definitely less limiting than it seems, but crops up in odd ways and at odd times.

For cost, I'd probably do something like this (and I like complicated formula):

(1-Sqrt(percent of ST remaining in that arm)) percent discount off Arm ST (5/level)

So my case for 70% ST in one arm would be:

sqrt(.7)= 0.82

1-x = 0.18

Round up for the fun of it, and that's 20%. So 20% of Arm ST is 1 CP.

That's probably about right...70% ST in one arm and 100% in my dominant arm is a quirk level impediment.