No, but . . .
. . . Our daughter has horses, runs a small rescue, hosts an annual event, and has a website and forum, where you can post this question. I'm the admin, so I'll add a category for you right now. If you post this over there, I'll make sure Katie gets the word out to her horsey friends. If anybody knows the answer, it will be someone in that group.
http://lypeforum.com/forum/