I'm dropping the old Constitution mechanic, going with a completely different mechanic using successes.
I'm adding Negative Edges.
I'm using an adaptatation of the Lowell Was Right! skill system - you can have a maximum of 3 in any skill. Any more goes to a sub-skill, which is freeform - like Science/biology or Blade/dagger.
I'm using the Template Tree chargen method like in Lowell or Volant.
All resolution methods will use the same scales, so you can change resolution methods on the fly.
Some big changes in the game itself, which I didn't anticipate. I was thinking it would be more about the presentation, so fooled me! :D