Ah yes, I am aware the skill lvl scaling works something like that and it's not a straight 1+1 each time...
I was comparing the fact my theatric(Haark, retired) with called shot 4 was visibly more on target than my rage with called shot 7, even when the two had pretty close stats in int/agi/pres. The theatric did have slightly better int, but not that much.
I am continuing with Nittz's called shot training anyway, simply because I don't have a better place to put those points.

Injuries are healed after. I've created and hit serious injuries during a fight just fine, their doctor heal it at the end.