As the title says, how much spirit / mana regen do you have, and what content are you working on? I'm curious to see what other Disc Priests are running with at this time.
I'm running with about ~2650-2700 raw spirit in 10m FL. I currently have my 2set and I have been using my Tsunami Card and Alchemist Stone for the longest time (didn't use my normal Eye of Blazing Power when I got it), since the spirit on the card is awesome and the raw stats on the stone is also awesome. I've just picked up the heroic Eye of Blazing Power and haven't exactly decided which trinket I'll be swapping out yet (do I want more haste + int with the stone, or more spirit with tsunami). None of the normal encounters push my mana any longer, but I do worry about how my mana will hold up in heroic encounters (I'm currently 3/7HM, I'm worried specifically for Beth'tilac and Majordomo atm).