Tanks, please use strength gear.. :(

[Neophyte]

For me Str is the main stat for Tank aswell as Spirit is for healer. Vit & Pie are two secondaries.
I don't see the problem. I'm looking for str gear for my tanks and adjust my vit with my leveling stat points, you know, just to not be oneshoted by some big boss skill. Same for my healer with Spirit and piety.

Yeah, right. There's just one difference: You can't trade MND with PIE at all, because there are no pieces with PIE as main attribute.

You might use an item of lower iLvl (sacrificing MND for PIE-stat, if it's not on the higher ilvl piece). But that's a complete different affair, you're trading 3 MND against 30+ PIE or something like that.