I have an OTTB that runs into canter. I think it's a balance issue. What can I do besides half halts to rebalance her?
Or could it be me? I ask her to trot first then I use outside leg. I only ask her to bend going around a corner. Usually I start the canter on the straight side of the arena. So she's not bent when I ask her to canter. When she does canter she blasts around the arena. Gradually I'm able to slow her down.