Join Date: Sep 2011
Location: Nine Mile Falls, Washington
• Horses: 0
It still goes under the category of "too many moving parts". The bit we had for the gelding was a dog bone shanked bit. While he reacted more reasonably than in a split shanked bit, the curb gave him much relief as he wasn't getting so many different signals from the bit.
If you look at the way a split bit works, like for instance, an argentine snaffle (not a true snaffle by any means). All working parts are movable. The split in the middle allows for direct reigning, because as you move one side, the other side does not move as much with it. However, because the shanks are not solid, and it is movable, it can muddle your signal and the horse might get confused, or dislike it.
In a curb, while it only allows for neck reigning, the pieces are solid, and there is less muddling of the signals and the horse can understand more clearly.
Mileage may vary, but this is what happened with said gelding.