Flank Morale Modifier

[Jagger]

Well that explains something, the rules used can have a lot impact on how a scenario plays out.
In turn gameplay the defensive fire is trigger or not, and even if triggered it is only 50% of what you get in the defensive fire phase. Less fire will lead to less casualties that will lead to less disruption and that will lead to less routs what overall makes the line too static.

Do you have the optional rule "Higher Fatigue Recovery" on? That one helps too to achieve lulls in the battle as the commanders take some hours to rest their units before engaging again.

Yes, I have never played the phased game or with rout limiting on.  I haven't really investigated the phased game primarily because I assume it means more emails to play out a PBEM.  Regardless, the difference between regular OOB and -1 morale OOB is significant using turn gameplay.

On rout limiting, I considered it but I decided against it because routs were often contagious.  It wasn't unusual for whole brigades/divisions  to break basically simultaneously. Panics are contagious.  Maybe with more play, I will see situations that may make me reconsider rout limiting.  Time will tell. 

Also, yes, I do have "Higher Fatigue Recovery" on.  That is one I am watching closely.  It is amazing how many units were basically out of the battle after one bout of heavy fighting.  Units could no longer stand the strain of combat after significant losses of officers and NCOs.   And I am not sure which of the fatigue recovery choices reflects that situation best but I am going with "Higher Fatigue Recovery" at the moment.