[quote=@MelonHead]
Remove the BS 'weakspot' shit that no one can exploit without meta-gaming.
[/quote]

[@Vordak] Weak Spots only work in three situations, and all three are high tiered:

Squishy regenerators who have a weakspot that is exposed either through damage or is a requirement for offensive abilities. 
Example- The Devils from the MegaMan series of games. 

Incredibly slow and tanky bruisers who have only one obvious and tremendously exposed weakness.
Example- The Colossi from Shadow of the Colossus.

Overall perfect characters with a Master-of-All-Trades sort of balance about them, with the source of their power being their weak spot.
Example- Meta-Ridley from Metroid. (Kind of.)