As I’ve mainly ridden in halters I thought a bitless bridle would look a bit smarter, and so bought the Dr Cook bitless. Shiloh doesn’t like it, maybe the pressure around his face? Not sure. So in researching I found a bitless company that makes the nose band to fit your own bridle, so tried that…… and Shiloh is now a happy camper.
The one that I bought is a side pull. I used it with my ordinary bridle as I like it. Easy to attach as it goes through the part of the bridle that the bit usually goes through and has a small strap that attaches to the neck strap so they stay together. or, yes I would just use holter.