Yes, we’re trying to use “heel” for “come to my left side.” Mostly used if he gets ahead of us and pulls a bit too much. And we use “come” for if he lags behind.
We have tried the holding treats to keep him there; it’s a good thing he’s treat oriented. But it hasn’t quite sunk in yet. I guess we could try the mixing spoon thing, too. Thanks for your comments. 🙂