DD ele armor?
Since when precision and vitallity is the same? Or higher power/toughenss than lower that?
Personally I’m not huge fan of P/V/T (beside some parts eventually) cause I end up with 19-21k hp. That’s waaaay too much in comparsion to healing power back then or toughness.
You can always mix them.
~100 toughness boost is indeed good thing by cost of power, which you can recover by simply might stacking.