I use a Dr. Cooks bitless; my horse used to turn in tiny circles with a bit in due to a piece of wolf tooth still embedded in his gum (v.painful for him) so I got him a bitless. Then he had two years off with a back injury sadly. The picture is from the first time I got back on him when I brought him back into work, I expected him to be fidgety or buck or take off like a lunatic, not a peep. He is so much calmer in this bridle than he ever was with a bit.
Last winter a huge slab of ice fell off the barn roof right in front of us when I was riding, he spun 180 degrees and I expected him to bolt but I pulled back with both hands and he just stood still like nothing was happening.
I've had no problems with this bridle so i've never tried any of the other brands, maybe one day I will.
Please excuse how fat my horse is... he'd been off a long time on good grass, he's lost the weight now. 007.jpg