Here we are keeping the strategies and hints for HNM hunting.
(this information comes from ZAM
[IMPORTANT:] Incapacitating different parts of the NMs also require you to stand at different positions appropriate for the part you want to break.
EXAMPLE: To break Buffalos Left Horn, the characters trying to break its Left Horn must stand on the left side of Great Buffalo. The characters trying to break its Right Horn must stand on the right side of Great Buffalo. Here's the SE official page
[2012-05-05: Why keep old information? I removed the old stuff. This table makes more sense, thanks to the person who added it.]
Head Right Left Legs Special Rt Special Lt Special Bk
PGL Concussive Blow Demolish Dragon Kick*
GLA Spirits Within* Savage Blade Flat Blade
MRD Skull Sunder Storms Path Godsbane Maim
ARC Bloodletter Leaden Arrow Gloom Arrow
LNC Heavy Thrust Impulse Drive
*Monk and Paladin only
Mobs breakable body parts (mostly bosses and the like)
Head Right Left Legs Spec. Rt. Spec. Lt. Spec. Bk.