Haha omg! Sorry about that!
I understand trying to breed for the cream of the crop, but wouldn't it just make more sense to breed outstanding n/n mares? If I understand correctly, I think you only need one copy of the HYPP gene for the horse to be affected by it, unlike other genetic disorders like OLWS where you need two. Maybe I'm mistaken, but I thought I had read that somewhere.
However, that's neither here nor there as it's beyond your control. I hope everything goes well for you and that your mare catches easily. Has she had any foals before?