When I run the Spooky Central plasma, I feel no Herx reaction. Is it possible there is no Herx reaction with the Spooky Central? 

The preset for Spooky Central gives the optimum settings for most general use. Spooky Central should not give much of a Herx since the frequencies pass very easily through the body. Our bodies are almost fully transparent to magnetic fields. When Royal Rife treated his patients they felt no herx.