Ok, I've played this game before, lol... it's always a guessing game. But my mini is about a year old (looking at her teeth), and she is already 34.5 inches at he wither (didnt know at the time I was supposed to measure to te last mane hair).... She is not registered. If she gets much bigger than that is she still considered a miniature horse? If she's already tat tall at one year, any guesses on her final size? It wont hurt my feelings if she gets bigger. I am actually a little excited that she might get about thirteen hands maybe? Probably not, lol... When are mini's at their full adult height? Same as a big horse?