"To fire or not to fire, that is the question?"

[Mr Grumpy]

So in some circumstances it is better to fight back , rather than just accept your fate without making the other guy pay. I think fastphil said it best, there are many different factors as to when to fire back or not, there is no hard and fast rule.

In the situation you describe you are 100% correct because you have fresh units to man a second line, so you must make the Germans pay in men and fatigue, if you didn't have fresh reserves then firing a having your units disrupt would just speed up your destruction, making the attacker pay a minimum of one third of his MP's to achieve a disruption really does slow a offensive down IMO.