Any tips on crafting ilvl 84 aura reservation clusters?

Seems like every aurabot has 6 with 35% effect (usually fractured), 10 int, 20 ES, 5 all attributes. I'm guessing there's a strat to this, any insight or links? I play Aurabot every league for duo to trio play, and I can't just keep raw dogging alterations onto ilvl 84 clusters, regal, exalt, scour, repeat hoping for something worth 50+ divs.