i had problems with my charlie on his lead, i remember some one saying a hareness is used to pull things and i surpose they were right,
he was terrible and put more body weight behind him.
so i tried one of the leads with the two loops one goes round the neck and the other over the nose,they are connected instead of tightening round the neck it tightens round the snout the leads look like think rope.
when he pulled, it tightens on his nose and gave me more control,
he hated it, i only used it twice ,
amazing difference after 1st time, i had the lead just on my little finger walking along gob smacked.
everytime he starts going back to pulling i use it once and he remembers, brilliant.
his stride is super on it nose clean in the air.
i dont know what i would of done.
hope it doesnt sound nasty cos its really not, try one honest.
let me know if you do, im glad i found it. they are in all shops that sell leads,
good luck
x x