I'm not sure how I missed the responses to this. Sorry donnie, Neil.
Donnie - I started pushing with Lou in February. Both meals every day. I started with pushing only and when he got ok with it I mixed it up. Push for food, a little heel work, and on the box. Lou took right to box work and what really escalated his Stay on the box was when I started trying to pull him off a little using his leash. The more I pull the harder he stays.
Then we added Speak.
Then I added distraction - my neighbor's barky fearful Dane, behind a fence. We pushed for food up close to her, far away from her, by her, etc. He would give a good push when she was around.
Neil, you are right I AM doing the work. But, I was doing the work before NDT and got nowhere - the right philosophy is crucial