Pinch or "prong" collar it is actually a gentle tool for training many dogs with little or no tugging, jerking, or pulling.
"slip" collars :A harsh jerk with a slip collar can damage a dog's trachea.
For a well-trained dog with super high prey drive and a tendancy to bolt, I would recommend a prong and not a choke chain. Choke chains don't stop the pulling, they just do what their name implies - "choke".
You never correct or jerk a dog wearing a prong collar, as the dog corrects himself while wearing it.
{study taken from
http://www.cobankopegi.com/prong.html}
A Study on Prong Collars was done in Germany:
* 100 dogs were in the study. 50 used choke and 50 used prong.
* The dogs were studied for their entire lives. As dogs died, autopsies were performed.
* Of the 50 which had chokes, 48 had injuries to the neck, trachea, or back. 2 of those were determined to be genetic. The other 46 were caused by trauma.
* Of the 50 which had prongs, 2 had injuries in the neck area, 1 was determined to be genetic. 1 was caused by trauma.