On contrary, he should wear his harness to have any chance to improve!
I have very slight advantage over my husky when we bike - only my reflex and my eyes, to see quicker then the dog, what he is going to see next second (any interesting things that are important to check-out) and prevent what is going to happen with very sharp brakes.
I wrote what I wrote earlier not knowing that you have any problems while bikejouring. For beginners (such sport takes time to mastership) I'd reccomend double attachement to the dog. You may ask someone to help you. Usually 2-3 times would be enough. One leash is attached to a simple collar, and you with another leash (line) are attached to the harness - or to the bike; then centrally to the HANDLE-BAR. In any of this you may try to walk the dog giving him approval signs (any of your choice). He will learn very quickly what is proper. He is CSV, so he IS quick to learn.
Regards maria and wulfy
PS. My knees were dark navy blue after my first attempt to skate with my not pulling dog. He simply did start with no commend and me looking somwhere else.
Now I have experience with teaching my nephew to bike my dog with assecuration I described above. So I think anything less is stupid for beginners
