See the roll of fat at the top of Blue's neck? When my last horse foundered, the vet told me that is the first indication that you had better get a horse on dry lot. Blue does have a big, crested neck by nature, but not THAT big.
And there must be some reason the girth of his saddle is getting almost too short.
The picture yesterday was deceiving. I think this one, which I just took, tells the tale; the poor boy looks like a draft horse.
It will help matters when I get in the routine of riding at least three times a week again, but he is such a chow hound (like everybody else around here) that he still needs to be kept on a diet.