if anyone is still reading this thread? I just bought an OTTB mare, who has the caslicks sutures in place. she is 5. I do not plan on breeding her, she is to be my show horse, and she is turned out with my gelding, who was gelded at age 6. [was never used for breeding]. she was also intended to be a companion for him, because he has been a loner ever since his mom died 2 years ago, and my other geldings beat him up. however, he keeps trying to mount her, [was with his mom ever since gelding, and never bothered her], I'm worried he might injure this new mare, I see her trying to "wink" it looks painful since she's not able to do what is a natural function. so far all I can find researching it is to leave her the way she is, but would like opinions, other's experiences?