Ah! I think I see the confusion here. Here is the relevant passage from the 1st ed book:
Witch Hunter: The Invisible World 1st edition, pg 121 wrote:
These rites will have an entry called Damnation followed by two numbers separated by a slash (/), such as 2/4. The first number signifies the amount of Damnation the caster (including all involved in assisting the caster) receives when attempting the rite. The second is the maximum Damnation score the caster must have before he no longer receives Damnation points from enacting this rite.
Example: Ethan Marshall, the Diabolist enacts the rite of ‘Limned in Fire’. This rite has a Damnation score of 2/4, meaning that Ethan gains 2 points of Damnation each time he enacts this rite until his Damnation score is 4 or greater. At that time, he no longer gains any more Damnation points from enacting this rite.
Not sure why this got cut from the 2nd ed book. Maybe it didn't, but it was certainly moved. Either way, I hope it answers your question.
Tom