But, can't I do some local edits to Hard (for example), in the meanwhile? Logic.txt is the way to go, isn't? I just want a bit more of gold than the 20% of Impossible. 50% should be enough.
The other fields/parameters of Impossible are fine.
It's only up to you. Play the game in the way it suits you. Actually, I can't even do something about that anyway
And yes, Logic.txt is the file.