Oh cool, looking forward to your thoughts on them. I jotted down some notes in the RE-400, but I'll be honest in that it's been months since I've heard it. Would be nice to hear a fresh perspective on it.
As for the BA200, haven't heard it. Though, having grown up in the 80s, I do have a fondness for TDK. If I get a chance to audition them, I'll PM you some impressions.