In April last year, I started loaning a cob, I knew he was a three year old, rising four. So I was fine with riding him. Then in December he was kindly given to me by the owner. He was a rescue case so his age isn't 100% accurate. I bumped into someone who knew him as a foal, and they said he would be rising four this summer. Which now has me wondering. When was the cob backed? If I have been riding him a year and he's riding four now. Was he backed as a two year old? Now, I'm also wondering. What do I do with him!? I was debating on turning him away, letting him mature. But then he gets fat off air. So he would need some exercise. I'm also wondering, would stopping his workload do more harm than good now? I could hack/trail ride him for the summer, and then bring him back into schooling in the winter? I'm stuck on whats best for him! I know for sure he's now about four years old. I had him aged roughly by the dentist.