I kept an ace bandage around the leg for 3 more days. The colt still will knuckle under once in awhile. He wasn't even walking on this foot at all a week ago. I had someone look at him yesterday and they didn't notice anything out of the ordinary. I was planning to do the splints, but they are not needed.
Tendons are inelastic.
They do not stretch. For a variety of reasons, the muscle of the deep and often the superficial flexor tendons contract because of pain. I generally glue a cuff or similar device to the hoof, and then ammend a wedge to that. If this is the case or even just a contributing factor, then you will need to adjust accordingly. Our vets here on this board will be best able to advise you regarding turn out and amount of exercise.