Zapper's frequency: does it matter?

Hi,

I am new to zapping. From this forum I've heard good things about the $10 zapper and the Terminator. From what I understand, they both get the job done, but the $10 zapper operates on a much higher frequency than the Terminator. Dan Croft, who designed the Terminator, seems to think that 15Hz is the optimal frequency. What is everybody's thought on that? I am trying to decide on whether it is worth it to get the Terminator. (I'll get the $10 zapper anyhow. And I can make my own orgonite and mobuis coil. But I am just not sure about the frequency thing.)

Does anyone have a thought on this?

Thanks!

Aya