English bitting is so simple and straightforward. A snaffle is a snaffle. A curb is a curb. A pelham is a pelham. A Kimberwick (UK “Kimblewick”) is also a type of pelham.
We have french-link snaffles. Bean-mouth. Single-joint. Dr. Bristol. D-ring, loose-ring, full-cheek, fulmer. Etc.
We have curbs. Curbs have shanks and [usually] curb chains.
Kimberwicks have ported mouths, or they have jointed mouths; some have slots; the latter are called Uxeters.
Western bitting, OTOH, has snaffles with rings and “snaffles” with shanks. It has “curbs” with jointed mouthpieces. There doesn’t seem to be any agreement among western riders as to what a snaffle is and what it is not; or what a curb is and what it is not.
I’m not even gonna get into all the “specialist” bits – the ones with chain mouthpieces, spade mouths, and the ones that purport to do mechanically what dressage people train to do with their seats, legs, and hands – train self-carriage, head carriage, forwardness, and throughness.
Western even has “correction” bits, although no one seems to be able to say what the bit is supposed to correct; I say that if a horse is trained properly he doesn’t need mechanical “correction.”
So, what’s it all about? Why can’t the western riding world just get together and agree on such basics as snaffle and curb. Forget which bits are legal for which disciplines, or which bit is “best” for one discipline or another.
If they could just get straight on the difference between a snaffle and a curb, and then take it from there, it would simplify things so much both for the western people and the rest of us!