Well, Gramps was quite the horseman so I never argued with him either!. And like I said I was younger then and don't know if HYPP was a part of it. I remember him they had smaller brains than the others horses and that's what made them dumb, but never knew if he was just messing with me or meant it! He just really really disliked them and that was out of character for him and horses.
I do have to say after seeing Broken A's horses and NOT
knowing they were Impressive bred, I have ALWAYS loved her horses, so looks like I gotta eat my words a little bit.