I used my Russians against Prussians in an encounter type game after rolling for terrain table set up as per the campaign system.
Not a great deal has changed in rules mainly some streamlining and clarifications type stuff.
We had a ding dong battle with Prussian foot showing their shooting and maneuvering prowess (they get to move half move at no effect and full move at -1 dice compared to others who suffer -1 dice if move half maximum and they also get +1 firing when Fresh).
Only the fact that the Russians had an extra Brigade of Infantry saved them as their right wing Cavalry were crushed by Prussian Cuirassier.
Sadly their own Cuirassier failed miserably to defeat the weaker Prussian Dragoons on left !
We enjoyed the tactical aspects of Age of Reason despite the lack in inertia.
To be tried again