I am looking to purchase a horse that has been out of work for almost a year and subsequently is lacking any muscle in his hind end. Today I brought my trainer out to look at him and he picked up on a "curve" in his left hock. He was slightly hitchy with that leg during the trot - however his current owner swears he has never had lameness issues. He did have a negative flexion and hoof test recently. Any ideas if this is a deal breaker? Or if this sort of conformational mark = chronic future lameness? Thanks for any and all help, I appreciate the advice!