As far as Kincaid saying Harry was as human as he was...  Personally, I'm fascinated by Kincaid.  And I'm quite sure that comment had meaning - and not just that being a Wizard is enough to differentiate himself from a vanilla human.

...

Kincaid is a scion.  We know that now.  And that he made his choice a long time ago.  I really can't see him throwing out a comment like that in reference to something they both knew - that Dresden was a Wizard. 

Not to say I know what it means.  But I'm pretty sure it's important.

I instantly glommed onto Kincaid's comment when I read it, because I've suspected since very early on in the series that it would turn out that Malcolm Dresden was NOT actually Harry's birthfather. We know that Maggie, Sr. was a mortal wizard, so she's not the supernatural parent who would make Harry "just as human" as Kincaid. The logical conclusion, then, is that Harry's birthfather was supernatural.

I developed a theory about this last night after finishing Changes: Odin (or one of his own supernatural--not scion/crossbreed--offspring) is Harry's birthfather. It would certainly explain why Odin showed up for the battle at CI--his own life was on the line. It also explains why the Red King was determined to see the ritual through--if you take out Odin, you create a huge power vacuum. In fact, considering that one of Odin's traditional designations is "Allfather," it's possible that a bloodline curse involving Odin would make the extensiveness of what happened to the Red Court look inches-to-miles by comparison.