I have tried to tuck his head in by using the inside rein. His first response was to hold his head higher and his nosed out more. I just started riding this horse. I usually collect my horses head my gentle pulling on the rein and release the rein as soon as they give me their head. Within a short amount of time, I usually have their head set the way I want it and it seems to help their gait.
This horse is seven years old. I was told that the last two years he was used as a stud. He was just cut on Nov. 1. The guy that I bought the horse from seemed to think that this would change now that he was cut. My personal feeling on this is the horse was allowed to do this so it may be harder to change his head set.
I do not use any artificial means such as plantation or weighted shoes, chains etc. I usually just use a lot of training with gentle hands and praise to get what I want out of my horses and have been successful but they were young horses and I have been the only one ever to ride them. This is an older horse but has had little training.
I haven't had a lot of experience with horses that already have bad habits.