Hi, I just purchased a Don De Marco Gelding. Hes just about to go 5 in June and right now is on the small side. Hes 15.2 and I have been told he should get to atleast 16 hands. His mom is said to be 16 and DDM is 16.1. How big is your mare and how big was her mother. Also I have heard that the “D” line matures late, up age 7 or 8? I am hoping my boy reaches 16 hands as I am 5’7 with long legs!