Top Gear in for Repair

Hartpury Top Gear has been bought up from the 20 acres he's has been living in for the last 14 months. He loaded first time in the middle of the field, vey impressed with his instinct to please, he's just 2 years old. He has had a much needed MOT. Wolf teeth which were huge and had an enormous long sharp root, have been removed. Farrier Steve White has been to advise us what to do with an interesting crack in his hoof, advice was to leave it as should grow out and be fine. While he is in he has had a saddle on, been tied up, wormed and just general baby horse education. He is huge 16.2 hh, when we bought him he was tiny and the other 2 yearlings in with him were giants, Hartpury Samson and Hartpury Romeo how big must they be now?!