I'm confused about something. I read posts where people say they feed "one flake twice a day" or "two flakes twice a day," etc. I've had horses for 18 years, and have always given a roughly 5-6" flake twice a day. What constitutes a flake? Do any of you weigh your flakes? I feel I may be underfeeding my TWH, who never gains weight, yet I've been told he's a perfect weight. Still. . . .when comparing him to my "fat boy" Arab, who is 22, and has always been an easy keeper, the TWH looks thin to me. Should I be feeding more? The flakes I feed are approximately 10-12 lbs., so my horses each get approx. 20-25 lbs. of hay daily, plus one of the LARGE coffee cans of Equine Advantage Senior, and a cup of BOSS. They are not in heavy work -- a light trail ride once or twice a week. Am I underfeeding? I feed Bermuda or 3-way with a small amount of alfalfa mixed in (grown that way). The alfalfa is no more than 15% of the total amount fed.