Phase 1 was simply to get him used to the harness. Then we added the leash. Now he's walking with it. We're working on getting him to follow a bit better, but I think he's making great progress! We'd love for him to attend swaps and shows with us....but for now he's still in training. A few more weeks and he'll be a pro. Way to go Snowflake!
Update: After quite a bit of trail and error, we have figured out how to make the leash training much easier! Check it our new improved method here: How to train a chicken to walk on a leash.