Quick update:
OK. I taped it, and did some more honing on both stones. It now shaves. It does not pop hairs on my arm in mid-air (as I prefer), but I did shave part of the back of my wrist no problem. It is sharper in the middle, despite me using a "rolling" honing motion, but the toe and heel both cut moist hair.

I wonder if I should use the Chinese polishing stone alone from now on?