Reader, I sent it.
I expected it to be brutal and crimpy and awful at the bottom, but really it was lovely--all balance and technique, and moving your feet around, and your hands are mostly just there to give you things to balance on. Apparently, I climb better than I realized, because I just floated up it.
I fell off scads trying to get over the roof, though. Don't worry. *g*
Going back tomorrow. We'll see if I have any juice.