My horse has a small mount, short smile, and a large tongue. I'd tried several bits both from Fager and others made of traditional materials such as stainless steel. He was always fussy in the mouth, especially at the start of the ride. He was worse in a loose ring bit and better in a baucher, so I thought I'd try the baby fulmer. The Nina was better than other bits I'd tried, but he was still fussy at the beginning of the ride and was resistant if I was a little too strong with a half halt. I was worried the Sara would be too thick for his tiny mouth, but he loved it. Still plenty of whoa if needed and much quieter in the contact, especially at the beginning of the ride. Very please with this bit!