So on Sunday I took thunder out on a nice trail ride that went over 200 acres of farmland. We were with 3 other horses trained. I was able to get him to canter when the other horses would go for it, but not when asked to do so. I am currently training him on the lunge line and he is unbalanced going to the left, but beautiful on the right. Any advice as to how to train him on command or am I moving in the right direction?