We have had some of everything over the years, AQHA, Thoroughbred, Paint, Holstein, Morgan even some nice grade horses. Many do not start to fill out until they are 5 or 6, some later than that. We have a palamino paint gelding that just turned 6 and grew 2" in the last 18 months. He's teetering again. My daughter has a beautiful thoroughbred mare that was bred on a polo farm, she washed out and now she is trainig as a Triple A barrel/gymkana horse. She started her last year when she was 7. Go slowly, take it easy they tend to be a bit high strung with lots of energy. Give him time to grow into himself and broaden, let those legs thicken up a bit, he is still very young. That being said the only critism I have is that he isn't square in the pictures of his hind, so its hard to tell if he toes out. His hip is short and with work his butt can be built up(he'll need it for impulsion), his tail is set a little low but I've always liked that in a horse that has to sit back, spin or slide. Muscle is a great equalizer. His back isn't really short and with the long rear pasterns and cannons he should be able to get under himself and have a nice long stride.
Thanks I for the life of could not get him to square up his rear end he would always rest one foot. And don't worry about his training I've training many young horses over the years and I am a big believer in taking time in a training program. Slow and steady training now equals nice horses in the future that understand what you want from them. As for high strung he is extremely chill like my other TB. But in the wrong hands he could easily turn into a real handfull. There has been a few times that if I would of been a beginner rider and not paid attention to his body cues he would of dumped me on the ground. Whenever he get nervous I just shift his focus back to me and we move on with the ride. Posted via Mobile Device