Paid Critique, that is.
As those of you who have been to a writing conference know, that's something you can pay a little extra for, and it gets you a critique from one of the conference faculty: an editor, an agent, or a published writer.
Make no mistake: this is TOTALLY WORTH DOING.
But what should one send? Organizers will tell you to send your best work, but what if your best work is already out in someone's slushpile? Do you send something you're still working on, but make it as good as you can? Or do you assume that since no-one's jumped on it yet, that work you queried those editors or agents with might need a pair of expert eyes?
I usually send in something I'm working on, since I do believe in drawing the line somewhere and once I send something out I consider it "done" unless the person I sent it to asks for revisions, but I'm very curious about what you all do.
What do you send? When is a manuscript off limits for a professional critique?