Quote Originally Posted by Eidolon View Post
I -might- be mixing it up, due to left-side pieces having two slots, to be fair.
You are, yes. No accessories have ever had two slots. The only gear with two slots is left-side stuff. And even though left-side gear has two slots already, it's already capped on Primary Stats, so there isn't going to be any benefit to melding STR on them for tanks.

Tanks might get some benefit out of melding a single Grade V Strength Materia on crafted accessories, but it honestly depends on how great the level difference between crafted gear and raid gear is (we don't really know what it'll be like at this point), and also how much value STR actually contributes (I'm skeptical of any AP conversion for STR that's higher than 40% and suspect 30% is more likely right now, but we won't know for another month).