Stop stuttering script

A client emailed me to ask: can you sell me a good script to stop somebody stuttering? I do not have a stop stuttering script. I have dealt with stuttering before and improved the guy's speech tremendously, but in my opinion using a script is not the way to deal with stuttering.  

Origin of stuttering

Stuttering is the result of childhood trauma. A some point,  the child was made to feel nervous in some situation.  The child then got into the habit of being overwhelmed with nervousness in more and more situations. I once knew a man with a stutter who was brought up in France. He moved to the USA as an adult. He stuttered all his life in French, but had no stutter when he spoke English.
The correct way to treat stuttering is removing the cause of the chronic nervousness. This can be done by several hypnotherapy methods. Maybe most often by regression to cause, and you don't need a script for that.

That got me thinking about what other things scripts are not good for. The main class I suppose are substance abuses. They can all be helped, even stopped by hypnosis. But in most cases a script is not the right way to go. In my view all addictions are due to underlying unhappiness. People take drugs to escape from the way they feel now.

No Stop Stuttering Script

The correct approach is to find out why they are unhappy, why think they are not good enough, not wanted, whatever... and treat that. It will take several sessions. Once you have cleared whatever their particular unhappiness is that is driving them to take the drugs, they will stop by themselves. They won't need what the drugs are giving them any more. But every case is different and has to be understood differently. You can't use a standard script.

What other common conditions are not treatable with a standard script?