I am just wondering about this. I went to a clinic that my friend was in with her horse. The trainer wanted the riders to use full cheek snaffles. Out of all the riders, only one had keepers. I had read an article by Julie Goodnight a while back that stated that the bit should only be used with the keepers. However, since then, just about anytime I witness the bit being used, it didn't have the keepers, nor did anyone even know what they were. And when mentioning this recently, after the clinic, it was said that that was an old way of thinking. I don't use this bit, just wondering for my knowlege, or lack thereof, base.