I have MS.
I have experimented with around 6 bitless options (3 cross-unders. jumping cavesson, the “wagon wheel” and the Light Rider bitless bridle). You see I was riding this older Arabian mare with the most sensitive mouth I ever met up with in over 50 years of riding. whose training had gaping holes deeper than the Grand Canyon.
At first I got decent results bitless with this mare, but only if I used the lightest contact or sagging reins with the bitless.
As the months went by the Light Rider bitless bridle was her favorite but, using eloquent “sign language” she finally got through to me that her nasal bone was MORE SENSITIVE than her extremely sensitive mouth.
When I got further into the proper timing of my rein aids this mare convinced me to go back to the snaffle (with my riding teacher’s permission.) Once I learned to time my rein aids so I never blocked the horse’s movement she was pretty content with a snaffle bit.
With EVERY horse I tried the modern bitless bridles with I ended up having to use LIGHTER rein aids with the bitless than using the snaffle. Also, whenever I had to take a hard hold with the bitless bridles I had BIG problems controlling the horse’s speed (I felt like I was being pulled by a locomotive.)
IF I ever decide to use bitless again my go to would be the Light Rider bitless bridle (a modified Scawbrig.) If I would need more control I would use one of the cross-unders, always, always, always remembering that a lot of horses’ nasal bones are more sensitive that the bars of their mouths.
I have Multiple Sclerosis, my hands are not anywhere near perfect (that is why I thought the horses I ride would prefer bitless), my balance is horrible, and I often have problems with coordination. Even with all my physical problems the lesson horses I ride prefer I use bits.
So nowadays I ride with a double bridle. The lesson horses, who had never had a double bridle used on them, relax and calmly get down to work.
I am a big believer now in double bridles. I keep the curb reins sagging some, tweaking them at the proper time of the horses’ strides. it if I think the horse needs just a tiny bit more emphasis.
I have introduced several horses to the double bridle at my lesson stable. At first I had to go through some rather delicate negotiations with my riding teacher (she does not want her lesson horses abused after all), but now she does assume that the next time she changes my lesson horse I will want to ride it in my double bridle (I use my own bridle.)
In Great Britain for many, many decades a double bridle was used on many horses by adult fox-hunters. For a while it was assumed that a person riding to hounds used a double bridle.
With the really sensitive mouthed horses I have to start riding them in the snaffle with a feeling that I am trying to keep contact with an easily breakable COBWEB, maybe as little as one gram of weight or less. Once I get the horse’s relaxation (mouth, neck, poll) I can gradually increase the weight of my contact but I rarely use more than an ounce or two of weight for contact with the bit (lighter with the bitless!) When the horses speed up they increase the contact on their own (yes I use my legs). When the horse dictates the strength of contact with the bit they are often much more responsive to the rein aids.
Even when I am keeping contact with a “cobweb”.