My horse is extremely prone to chocking. He was neglected and used to not be fed, he then started bolting his feed, thinking he'd never see any again, poor dear.
Anyway he gets 2lbs of triple crown complete mixed with warm water and soaked until its about 8lbs total with the water. He also gets about 1/2 a cup of oil, mix it all up, and voila no choking whatsover. It solves it physically because its soft and has that oil, but also mentally because he thinks he has a ton of food, when really its only the 2lbs of feed, but to him it looks like a feast. He does extremely well on this combo. Healthies horse at the barn