I would use the harness inside if you are planning on using one outside. He can get used to how it feels inside and the weight of it. Plus he will get used to being trained in it and will hopefully cut down on the amount of distractions when you do progress to outside. How food motivated is he? With Rocco, the bird LOVES food, he is highly food motivated. What I've been doing with him is putting him on his stand. Then I walk close to his stand and I give him the command to come, when he steps onto my shoulder I give him a treat (I've been using pine nuts, they are small and soft so they eat them pretty quick). I have increased the distance between the stand and I. Now he jumps to me and has started flapping his wings on his own when he does it. He hasn't recovered from his horrible clip from the previous home yet so I haven't been able to increase the distance further. I've also noticed since we have been doing these exercises that he has been stretching and exercising his wings on his own.