I do, however, wonder about the whole not-being-able-to-track-Lois-and-Clark-in-the-present-because-their-souls-are-already-there thing. How can they be tracked in the past, when there are previous incarnations of their souls? Or can they not be tracked whenever there are living incarnations?
I haven't gone back to re-check so I might be way off, but the impression I got is that the souls aren't tracked in their own time out of respect for the privacy of the two current incarnations. I think Madge was the one and only person who knew it was Silas & Petal. So, maybe L&C could have been tracked, but everyone was too polite to look.
PJ