8.2. Tier vs Non-Tier Math
Here's some math on the differences between the Tier gear and the Non-Tier gear with varying levels of Holy Radiance usage.
If Holy Radiance is used every 30 seconds, the Tier 4-piece bonus will be worth 540 Spirit.
If Holy Radiance is used every 45 seconds, the Tier 4-piece bonus will be worth 360 Spirit.
If Holy Radiance is used every 60 seconds, the Tier 4-piece bonus will be worth 270 Spirit.
359 Non Tier Advantages
Haste: 328 rating
359 Tier Advantages
Spirit: 535 OR 355 OR 265
Intellect: 31
Spell Power: 31
Mana Regen: 3 mp5
Combat Regen: 2 mp5
Crit Chance: 1.29%
Mastery: 0.56
372 Non-Tier Advantages
Haste: 399 rating
372 Tier Advantages
Intellect: 31
Spirit: 544 OR 364 OR 274
Spell Power: 31
Mana Regen: 14 mp5
Combat Regen: 7 mp5
Crit Chance: 1.49%
Mastery: 0.58