"come", and you're taking the right road. Enjoy the unique experience that is a setter.
I use Come when I am calling them in closer and Here when I want them right next to me...then Heel. There is no set rule. This is the way my late dad did it, and it still works.
To release them I use "find-a-bird" and a light touch on the head. Remember to make sure all commands sound different. Any word works. I had a friend who used a bunch I can't post here...some vulgar, and some racial.
