Which bit type is commonly used for more advanced or specific control during riding?

The Dutch gag bit is designed for more advanced riding techniques, providing the rider with increased control over the horse. It features a combination of direct action and leverage, allowing the rider to communicate more effectively with the horse, especially in complex maneuvers or when more responsiveness is required. This bit can be particularly useful in jumping or eventing disciplines where nuanced control is necessary.

The Dutch gag's design allows it to function as a snaffle at lighter pressures while offering the capability for more leverage when needed. This dual functionality makes it suitable for riders who have developed their skills to a level where they can handle the added complexities of the bit's action.

In contrast, other options like the snaffle bit tend to promote gentler communication and are often more suitable for novice riders or for general riding rather than advanced control. The standard bit and the happy mouth bit, while both useful, also cater to different riding levels and experiences, not typically offering the advanced responsiveness found with a Dutch gag.