The difference between body points and luck points has been an overwhelming success, I could never go back to just hit points.
But when the luck points run out and its down to body points, it can be a bit of a pain to work out the ratios (ie, how much damage until a -2 penalty versus a -1), and so I simplified from the old system:
Body points remaining/ Penalty
to the New system
Damage Taken/ Penalty
1pt / -1
all but 1pt/ -10
Why is this good?
Well it keeps the same intent (ongoing penalties when real injuries creep in) and the same general scale, while reducing paperwork and calculations.
The Necronomicon, Family Skiner Edition.
14 hours ago