So, i'm new to this website. Found it while to do some research on horse's with straight backs. I put one of my horse's up for sale due to the fact I don't have time because i'm back to being a full time student and only have enough time for my other horse. The horse's past owner said he was green broke and she had ridden him, but he was in very bad shape when we got him. I have only lunged him around and walked him since I have had him. Anyways, recently I had an e-mail of someone interested in buying him, but after looking at pictures she wasn't interested because she said he cannot be ridden with his " straight back". I have never heard of that before in my life! He is a thoroughbred and in my oppinion that breed does have somewhat of a straight back. I guess I can see where she is coming from and now im going to have to get it checked out by a vet, but I was wondering what some other people thought. Let me know!