I have been playing with English rules with a dead wall or ruin, which you can only access through flower/season tiles or Kongs.
We end up deadlocked often, so I wanted to try the Chinese style where you have no flowers or seasons, can have more than one Chow and no dead wall, so you can access the whole wall directly for a larger chance of finishing.
From this rule description I understand you still have two 3rd layer or loose tiles from where you break the wall, but how/when do you draw them, just when you encounter that wall column?