Info from RoTea received! Wow, that was fast. Their customer service is kind of awesome.
Second steeping reminds me a great deal of the Pu Er 2002 Naka (Lahu) which I got from CS a few years ago. That taste of hot cabin wood, combined with a deep loam and wet stone.
Again, not for the novice, this. But then, sheng isn’t for the novice in general, come to think of it.
I may have to commit heresy on a later occasion and subject this stuff to a marathon steeping with fresh leaf just to see how the two differ.