If you would describe your horse as something with the following;
Lilly FSS is a lightweight single jointed bit with Fager’s FSS™ system. Fagers Smart System is locking the joints in any direction that it could hurt the palate.
Feeling more like a classic straight bit, but with some flex to it. This system gives stability and helps ensure good freedom and calmness in the mouth of the horse, in this balanced and horse-friendly bit.