Having a little problem with my pup coming back on the return from a mark running a foot or two pass me then heeling instead of directly at heel. Its not a big problem but I don't like it. He's running full speed and don't slow down till about a foot away then ends up a foot or so past then heels up fine. Is there away to correct this without nit picking? I've worked with bumper in mouth and sit him in front of me then command heel and he does just fine. I think it's just that he's not slowing down soon enough when he comes in.