What's the best method to ensure that the custom conversations are used?

At a certain point in my mod, I need NPCs who start conversations with other NPCs to use the mod's custom Conversation.
The setup:

• An NPC is given an invisible "token" called "KnowsSomethingFunnyAboutThePlayer".
  
• In the mod's main quest's Conversation tab, a topic is created called: "FunnyThingAboutThePlayer".
  
• One Info is created called "I know something funny about the player." with these conditions:
  
  • self.getItemCount KnowsSomethingFunnyAboutThePlayer > 0
    
  • target.getItemCount KnowsSomethingFunnyAboutThePlayer < 1
    
  • target.getIsId Player == 0
• This Info is not set as Random.
  
• Its Link From is HELLO.
  
• In the Result Script, the target is given the token "KnowsSomethingFunnyAboutThePlayer".
  
• The quest's Priority is set to 90.

With this setup, I assumed that NPCs with the token will always spread the token to NPCs without the token.
Unfortunately, when I test an NPC with the token with "npc.StartConversation otherNPC", the NPC doesn't ever use the above Conversation.


Edit: Nevermind. I got it to work by creating the topic as "HELLO".

Yup. This works quite well. In my new version of Simplve Vampirism Expanded, NPCs who know you are a vampire will spread their knowledge to other NPCs through Oblivion's normal NPC conversation system.

With the mod active, NPCs get to know that the player is a vampire in 3 ways:
1. when the player speaks to them when the player is at stage 4 of vampirism (as per the non-modded game).
2. they witnesses the player feeding.
3. from conversations with others who know the player is a vampire.