My habit for character generation seems to be shaping up like this: during Sunday night's session, he's no more than a set of numbers and a vague concept. During my drive home, he transforms into a real character with a backstory. By Monday afternoon, he's an overly elaborate concept with more history than he could ever possibly need. That, of course, is the stage I'm at now.
Therefore, I present to you my over-long character concept for the Blue Streak. I suspect Scott (and probably others) will want to tear his hair out at my pseudo-science. Hey, it's a comic book, remember? Comments are welcome, and if anyone else wants to post their character concept, that would be great.