I have been riding since I was 7 and that was a very very long time ago. I competed for 20+ years in english hunter/jumpers, western pleasure, and barrel racing. I am looking to buy a new horse, have not owned one for about 10 years and over that time I have gained weight. I am a 6'0" 295 lbs man. I am looking at a 12 yr old mare 17.2 hands very well built probably 1700-1900lbs. She is a very athletic jumper and strong mover, although my jumping days are over. Just looking for a horse to ride english flats and maybe western or bareback trails. I would have to say my riding balance is pretty good (confident, not cocky), but my size concerns me now. Before I buy her, I was hoping for your $0.02 regarding my weight and capability of horse without over stress. --- BTW this is my first post so sorry if this is an old issue.