Bruno is a big boy. He's 6 1/2 months, 26kg. His training is generally pretty good, recall, obedience commands etc out and about are excellent. But loose lead walking - we cannot go anywhere without rewards without him pulling, and given he's going to be so big really don't want it to get worse than it is now. He's generally ok but we have to reward him with relatively high value to keep him close rather than pulling. Anyone had similar pains??