An Analysis of GURPS attacks

For each location, consider various levels of deceptive attack, calculating expected damage output. Notes below the tables.
Rapid Attack
(-3 or -6)
Torso DR = 4		 Expected
Damage		 Hit Chance
13 3.9 1 hit: 49%
2 hits: 18%
10 2.4 1 hit: 38%
2 hits: 7%


Torso (0)
DR = 4
Attack Roll		 Expected
Damage		 Hit Chance
16 2.4 54%
14 2.6 57%
12 2.5 55%
10 1.9 42%


Eye (-9)
DR = 0
Attack Roll		 Expected
Damage		 Hit Chance
7 0 0%


Skull (-7)
DR = 4
Attack Roll		 Expected
Damage		 Hit Chance
9 2.3 32%


Face (-5)
DR = 0
Attack Roll		 Expected
Damage		 Hit Chance
11 3 44%


Leg (-2)
DR = 4
Attack Roll		 Expected
Damage		 Hit Chance
14 1.9 46%
12 1.9 47%
10 1.5 38%


Arm (-2)
DR = 2
Attack Roll		 Expected
Damage		 Hit Chance
14 2.2 46%
12 2.3 47%
10 1.8 38%


Groin (-3)
DR = 0
Attack Roll		 Expected
Damage		 Hit Chance
13 3.8 50%
11 3.7 51%


Hand (-4)
DR = 2
Attack Roll		 Expected
Damage		 Hit Chance
12 1.1 38%
10 1 32%


Foot (-4)
DR = 2
Attack Roll		 Expected
Damage		 Hit Chance
12 1.1 38%
10 1 32%


Neck (-5)
DR = 2
Attack Roll		 Expected
Damage		 Hit Chance
11 3.3 44%


Vitals (-3)
DR = 2
Attack Roll		 Expected
Damage		 Hit Chance
13 0 0%
11 0 0%


Attack:
Defense:
Damage Type:
Damage Dice:
Damage Bonus:
DR Torso:
DR Skull:
DR Face:
DR Leg:
DR Arm:
DR Groin:
DR Hand:
DR Foot:
DR Neck:
DR Vitals:
HP of Target:
# of Trials:

Combat Notes: Notes: