I've read over the melee combat rules in AToW and the bits in AToW:Companion a few times and I'm still confused. First off, if you go from Martial Arts 3 to Martial Arts 4 the only real benefit is the extra maneuvers in the companion since in both cases you'll need 4 on the dice to succeed?
Now, say we have two characters, Alex and Bob. Both have the same attributes, all 4s and the same Martial Arts skill of 4. Now Alex wants to punch Bob. I want to make sure that my understanding is correct.
Case 1: Alex MOS = 5, Bob MOS = 1, Alex does damage Bob does not. Page 180 says MOS for damage is modified by the enemies MOS, so Alex will do 1+1 damage from strength and 1 from modified MOS.
Case 2: Alex MOS = 1 Bob MOS = 5, Both characters do damage. Since Bob's MOS is much higher would that reduce Alex's damage downward? In this case would Alex do 0 damage because modifying his MOS by Bob's MOS gives him a MOS of -4. Or do both characters get their MOS bonus on their damage?
Case 3: Alex fails, Bob MOS = 4, Only Bob does damage. Is his damage modified by his MOS?
Case 4: Alex fails, Bob fails, neither character does damage.
Lastly how can a character in a fight make themselves harder to hit? There is defensive stance in the companion but say Bob adds 2 to his MOS for all rolls he will still take damage in cases 1 and 2.