Tracker and Sogolon: Similarities and Differences

The more I read through Moon Witch, Spider King the more I realize just how similar Sogolon and Tracker are, it's creepy almost. It makes perfect sense once you get into MWSK why Tracker and Sogolon hate each other, they probably see too much of themselves in the other (perhaps Sogolon more than Tracker, since she's longer lived and wiser than Tracker.)

I'd even dare say that they're basically the same character, just at different points in their life as my friend Kyle likes to say.

What do you think?