Quote Originally Posted by Silverbane View Post
You usually get Tire 4 material from converting Heavensward i90 and i100 (character level 54/55) gear (Holy Cedar Necklace, Dhamelskin Shoes, Holy Rainbow Apron, and so on.)
For me, it seems that the conversion rate for tier 4 materia is around 50%, which isn't bad at all considering the low cost of NQ gear from npc vendors. Even the tier 2 and 3 materia I get can be sold at a profit.