BH- I have no expertise in this area and an agnostic about Pletcher. Every article I googled explained how draw rein forces a horses head into a different position and stressed it's use was to be limited for a short period. The writer of the comment appeared to be quite knowledgeable ( and perhaps a sore loser). I just find it remarkable that not one of the talking heads, on TV or in print yesterday or today said anything.