Yes have been puppy classes in a hall and just started dog socialzation class which was just brilliant gets to come off lead and run round field with about 15 other dogs as well as training recall etc.

Doing the treat on the nose Back breaking as he is so little and almost eats my hand trying to get the chicken, then when i do give him the treat he is off again.

A puppy that small I definitely wouldn't be putting a head collar on - in fact I think if you got the technique and timing right you will be fine walking him on a flat collar.

Remember that when a dog pulls that is because we have inadvertently taught them that pulling gets them where they want to go.

What worked when I was teaching my Siberian Husky to walk on a loose leash was the change of direction technique.

Have the dog next to you and the instant he pulls, do a sharp turn on your heel and quickly change direction. Give him lots of praise as he catches up to you and is in the right position. Keep the leash loose, holding it tightly will transfer pressure from him to you - and he needs to learn that no pressure on the leash is going to be rewarding for him. If he is food motivated, take some food along with you in a treat bag, and work on the 'look' command. Reward him when he is focusing on you. Don't forget, every time he pulls on the lead, change direction, as this is what will teach him that pulling gets him no where.

Start training in a low distraction environment and slowly work your way up to a higher level of distraction as he starts working well.