We're not skating quite yet. There are still a few wrinkles and bumps in the corners and along the edges at the far end of the lawn where the ground is a bit higher. But I think another three or four floods will give us a passable surface on which to start skating.
With the temperature remaining below -9ºC (sometimes well below!) we can spend 45 minutes flooding, wait a mere hour for it to freeze hard, and go out with the hose again. We may be skating by tomorrow.