Alot of rideing would make your young horses good.They won't get any better standing in the corral I have some of those I just sold four of them last Monday unbroke 3 years olds sell for $75 each 4 horses broght $466 after commission but at least I don't have to feed them anymore.2 of them were older horses that were unsafe for all involved so good riddens.When you can buy a very well broke horse around here for $600 to a $1000 why mess with colt's.Cost $600 here to get 30 days on a colt not real economical raiseing colts.