When combining this mod with AAI Industries, train stops get locked behind a tech requiring both SP1 and SP2. Based on the description, this does not seem to be your intention. In addition, the tech unlocks two different kind of train stops (or 2 different recipes for train stops, I'm not too clear on that).
Since that means that train stops get unlocked about the same time as rails, that seems to make the point of this mod moot.
