Join Date: Dec 2010
Location: southern Arizona
I suggest either talking in depth with your instructor, or posting a video or at least a picture. Maybe I'm dense, but I cannot visualize a horse moving as described.
As a general rule, if the horse is trotting too fast, I'd either start a turn, tighten the turn, or bring them to a stop. There are some other options, but it is hard for me to understand the problem.
"Make the right thing easy and the wrong thing...well, ignore it mostly."