well sticken a roller on a horse when its 18 months old and doing a bit of mucken around or doing a 15 min walk and trott around the round yard dont do any harm.. it teaches the horse to get used to something on his back.. better way than just chucken a saddle on its back b4 they are ready. i dissagree on people mouthing a horse during the day with a hot bit...... might seem cold it aint for them. i never do any hard work on a horse when its broken. ride them for a couple of weeks then rest it up for a few weeks. never full on work. for eg race horse trainers are the worst. i work with a great trainer but hes started his horses to early in the racen game. ive broken ponys and horses and have had a good come back every time not been big headed but every one has been happy on my work. i have got a 3 year old she never bucked or pig rooted once when i broke her in at 2
