In a very basic explanation (I can make it a lot more complicated), exp gain from targetted spells is not affected by body location, only by the amount of damage delivered.
Trebber
Your mech lore ranks could care less if the paper is blue or plain.
GM XXXXXX "Well, we can't please everyone."
You say, "True, but that is no reason not to try."
>In my youth I'd get the most TM working lower weapons in rock trolls and just one hit kill eye shotting jackals that wandered in.
Most of mine came from one-shotting enough swamp trolls with fireballs so I could buy a spellbook, back when they first came out. Then the req's changed and I've been training weapons and multi ever since... that's why I left actually, I needed a bazillion back-trained ranks and it looked hopeless!
