I've got a show coming up in 1 month and I'd like to know what bit I should use to show my 2 year old in hand. It's our first show for the both of us and thought a strait bar rubber mouth but she has such a small mouth I'm not sure , can anyone advise .
You might like to use a rubber bit 12.5sm (universal size for small horses).
But why not use a bit-free Cook bridle?? It is impossible to describe all the advantages of usage such a briddle especially for young horses.
The Bitless Bridle provides a humane alternative to the Bronze Age technology of the bit. Unlike the bit, no pain is inflicted. Your horse is free from fear, listens more attentively, breathes more freely, and moves more gracefully. With a calm, less spooky horse, communication is enhanced, trust established, performance improved, and harmony achieved. Riding and driving becomes simpler, safer and more satisfying. Both you and your horse can relax and enjoy yourselves.
Although The Bitless Bridle is indisputably a bitless bridle it bears no other resemblance to the pre-existing and traditional bitless bridles, I.e., the hackamores, bosals, and sidepulls. In common with all bitted bridles, the traditional bitless bridles are pain-based in their mechanism. The Bitless Bridle is the only bridle that ensures a pain-free rein aid. It works on an entirely new and different concept compared with all previous bridles. The Bitless Bridle provides, as it were, full service communication, whereas the traditional bitless bridles all have limitations in their ability to provide for rider/horse communication. The hackamores and bosals, for example, make some provision for stopping (though with similar inherent problems to the bit method) but are weak on steering, whereas the sidepulls provide for steering but are weak on stopping. Furthermore, whereas the Bitless Bridle is applicable to all disciplines, the traditional bitless bridles are not.
This new approach to equitation permits you to be kinder to your horse; improve your horse's welfare and its mental and physical balance; avoid confusing your horse by expecting it to eat and exercise simultaneously (the effect of using a bit); have better "brakes" (bits induce bolting); enjoy smoother transitions; lengthen your horse's stride and, therefore, increase its speed; have less fidgeting; a much calmer, more relaxed horse and one that listens better to the aids; reduce the stress of exercise for you and your horse; dispense with tongue-ties and dropped nosebands; enables your horse to get more oxygen and generate more spirit, vigor and stamina; make faster progress with training; obtain better performance; improve your own safety and that of your horse; communicate more effectively and in a manner more acceptable to your horse; avoid so much lathering-up, foaming at the mouth and slobbering; allow your horse to develop a more graceful action, with a more rounded outline and better engagement; reduce the likelihood of lameness and breakdowns (from lack of oxygen, fatigue and heaviness on the forehand); reduce the likelihood of bleeding from the lungs and sudden death at exercise (caused by upper airway obstruction; put a novice on a fully-trained horse without fearing that its mouth may be damaged, and so enable a trained horse to teach an untrained rider; establish a better partnership; obtain more cooperation and have a happier horse.