I just bought a used english saddle for Dixie. Wondering if there is some kind of special padding for her back. She's a quarter horse and very round, but has very defined withers and on either side of her withers it dips down quite a bit. I'm thinking that once I start riding her, this area will build back up. Until then, is there a saddle pad that offers more protection in the front but not directly over the withers?