I never take my horses out with the intention of "breezing." I mainly focus on slow work and collection at a lope, along with controlling the shoulder, rib cage, and hip. All of my horses that I run barrels on are also my ranch horses. That being said, it's super important for the horse to be listening, alert, but calm. I don't like hot headed horses, and more often than not, breezing a horse tends to get them fired up. If you make a habit of it, they will anticipate and quit listening. I also like for my horses to calmly walk up the ally way, and only speed up when I ask them to. They stay calm throughout the whole patten, and listen. A friend of mine loved taking her mare out and breezing once a week. Once her horse got in the routine of it, she only focused on stretching out on the pattern, and not collecting up for the turns. It ended up slowing her down more than helping. So no, I don't breeze my horses.