Actually, a couple of concerns:
Last night...oh brother. I'm a 64 Shadow priest and was invited to a 20 man Molten Core party. I was up front about both my spec and about my trepidation, because 64 seems pretty lowish for that instance since I'm not spec'd Holy, but the raid leader was awesome and told me it would be a great learning experience. She even gave me an Onyxia Cape, which was so incredibly good of her, especially since I'm not in her guild.
The instance went well until we wiped on the third boss, mostly due to the tank getting cocky and cutesey, and then when it was time to rez everyone I aggroed the boss. I was more than a little humiliated, but most of the group took it in stride.
The leader had to go and the tank decided we should do AQ40. I knew ZERO about that instance so I said sure, I'd come for heals...and that was a terrible experience. Long story short: 50 people, no plan, flock of chickens with no heads, no one listening to leader, mages/healers left twisting in the wind...multiple wipes and dirty looks at the healers, even though we were too few, all of us woefully ill-equipped to deal with the number of people who evidently hadn't taken their ADD meds in days. (You know it's bad when a solid tanking Pally (level 70ish) is asked to do heals.)
So yeah, educational, to say the least.
I walked out of that instance with a stress headache. As I was leaving, another Priest, level 63, first character like myself, struck up a conversation. He's speced Holy. He asked me if it was a huge challenge to heal with my Shadow spec and I told him truthfully that it hadn't been a problem until that night. I also told him I feel that maybe I should go ahead and re-spec to Holy at 65 instead of my planned 80, just so I can adequately heal larger groups.
He then told me that he'd leveled to 40 as Holy and then got tired of it, so he re-spec'd to Shadow for a while. He said that his dps was miserable, and he thought that perhaps Blizzard imposes and actual penalty on spec changes. He soon switched BACK to Holy and said he noticed a significant drop in his healing ability when he shifted back!
So, my number one concern: is it true that respecing actually carries a damage/heal crit penalty, or was he just wrongly geared for each different spec?
Interestingly, the two of us wound up going directly to Ramps with some dps friends of mine to get that rotten AQ taste out of our mouths. Priest #2 healed and did so fairly well; I got to dps, which is always a joy (my crits with +spell power food/elixir buffs are hitting 2800 at times, which is a rush); and I once again wavered in my desire to be a pure healer.
My number two concern: is Shadow a viable spec in parties as pure dps? I mean, do Shadow priests ever get *invites* for raids? Last night at Ramparts was one of only two times I was given the opportunity to dps in an instance, and I gotta tell you I like it even more than healing (which I also enjoy).
Ideally I'd like to go Shadow all the way as dps and some backup healing...but will I be (wrongly) viewed as a gimp dps AND a gimp healer?
If any of you who have leveled Shadow all the way could advise, I'd be most grateful.
And have any of you respeced and noticed a difference, or was this priest off-base?
Thanks!