I've only started playing this game around the end of wrath, believe it was july last year. Anywho, I played druid, i love my druid, i find Cat dps to be alot of fun. With cataclysm came reforging and the mastery rating. Now i know to reforge everything i can into mastery/crit/haste. but With this upcoming patch i'm just stuck on something. Shadowtooth Trollskin Breastplate (sry new to the forms can't really share links or anything) - is a new epic chest, has 2 yellow gem spots with +20 to agility.
Do i ignore the +20 and gem:
2x Delicate inferno Ruby - 80 agility ( no socket bonus)
2x Fractured Amberjewl - 80 Mastery (+20agility)
2x Adept Ember Topaz - 40 agil/40 mastery (+20agility)
Just remember the rule of thumb, that bonus needs to be +15 agility per non-red slot to be worth using the hybrid gems. 2 yellow gem slots would require +30 agility bonus, so it's better to use Delicates.