I'm looking into buying a Gypsy yearling and I have researched and asked around a ton! From what I have been told is that, just like a draft, waiting a tad longer due to them being bigger is a good thing to consider. But then some people have told me that Gypsies being a smaller draft breed you can start at 3. I myself have decided on about 4-5 years due to what the vet says. Hope that helps!