Need help with Man strategy

[deccan]

Arryn said:
20 archers may do more damage to a target unit than 30 slingers, but the 30 slingers can inflict more morale checks, thereby playing on the odds that sooner or later the unit's morale will break if you force enough morale checks.

I agree that this sounds like the most reasonable answer. As I understand it, the mechanics of morale checks is relatively poorly known. I wonder if the amount of damage dealt makes morale checks more severe, or does all damage generate the same "quality" of morale check.