What I used was a wand and a talisman, and stacked as much healing bonus as I could get. I did the math and the healing bonus provided by the two including the magic damage is more than the staff itself. So go that route if you aren't going for damage.
Well depends on the staff... and if its tier 11 or not, but going with a tiered staff you trade heals for lost of off-hand stats. Going with wand + shield or talisman is a better choice than a tiered 2-hand staff. But its all opinion based.
Plus wisdom doesn't do squat after 8K so doesn't really matter if you stat more after that.
Wisdom still has an affect on heals but is very minimal after a certain point. That point increases a little as level cap increases just as critical percentage value per point decrease with every level increase.
Depends, I have a wand and shield as a p/k and i have about 135-150k gh. I will not use a tali because there isn't much point in having a higher gh atm when all the dps barely have that much hp. What about the tank you might say. My urgent heal crits from 65k to 75k, so I will stick with wand and shield until content requires otherwise.
Pretty much a good answer. But whether using a talisman or shield its up to preference of the healer or situation. Talisman is useful against magic users or magic based attacks, which I use in pvp if I am fighting against lots of magic users. Extra critical from burst runes probably add 1% critical so its not too huge of a gain. But if you are perhaps using a Aoth scared defense shield or annelia shield those are very good to have and shouldn't really have the need to use a talisman. If you have a tank shield with no heal bonus is good for extra physical defense but not really ideal to have.
Pretty sure priests can get by fine without the extra casting speed. Another curse rune doesn't do squat for GH, you would just stack higher heal exhaustions? If you're in a pinch, last prayer + gh or soul source. If it is a boss fight I am using ancient spirit water and clear thought, plus I have my pet's increased casting speed lvl'd as high as possible - I promise the UH are casting just fine.
Ancient spirit water and clear thought do not stack and using ancient spirit water overrides clear thought. Although the only priest class that has a consistent .5 urgent heal (which is the limit) is p/r due to their elites. Having extra curse runes will still benefit cast time even after initial burn phase. But also dependent on the preference of the healer and class combo. Any priest is fine without or with a extra curse runes you wouldn't notice to much a difference anyways unless you carrying curse X.