Cymro used to buck on canter transitions. He was the narrowest horse we had on the yard.....when I say narrowest he is a wide fit saddle.....say no more!
We muddled though for a while until we got a made to measure saddle and lo and behold the bucking ceased within half an hour with his new saddle on the transitions His new one has a serge panel and fits him like a glove. He now only puts in a f'tang if you use a schooling whip a bit too sharply.
The saddle he came with was sawn in half and dumped in a skip! It was a Med fit and was far too narrow for him. I saw them in half now as I have had them make a miraculous re-appearence, brought in by folk wanting me to repair them and value them for selling

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