Even though the Tier 5 Shoulders look well cool, I'm aiming for Tier 4. The set boni of Tier 4 are much much better than Tier 5. I mean, Tier 5's 2/5 set bonus isn't that useful for non-Felguard Warlocks. And the 4/5 set bonus is terrible! +3% Corruption damage? +3% Immolate damage?