PLD viable for speed runs?

[Judge_Xero]

MND also will increase your auto attack damage.

Main stats only effect WS damage. STR due to it adding Atk every few points increases AA damage.

Correct, auto attack and healing magic potiency with is also used for enmity build, soo i guess one could say stacking either str or mind would be equally effective depending on how your building you tank. If your building your tank to hold hate per DPS then str would be better, but if you are building a turtle tank, mind would be more usefull to you.

SE seems to have hinted at those two different build designs with the Darklight Pieces.

Heavy Darklight (HP,Def,Dex, Vit, Mnd, ENM, Magic Evasion, -Evasion) for Turtle.
Darklight (Atk, Vit, Str, -Evasion) for straight DD Tank

These are the most effecient designs for those two types of builds.