He has no idea what you want - got to agree with this . Start all over again . The dog should never get to the point where he is running out the length of the lead. You have created a pattern where he will repeat running to the end , self-correct (by restriction of the lead and the leash correction) and restart.
By start all over I mean to say that you will need to show the dog where you want him positioned while out walking.
So for the first while you are not going to go on some marathon walk , where his and your attention will drift and old habits return . Several times per day put this dog on lead -- go out to the sidewalk or quiet street or up and down your own driveway and walk 20 , 30 feet , correctly . The dog is to be in the same place every time you walk . Left side is traditional. His shoulder to your knee . The two of you take a few steps , at YOUR pace and speed , and then you stop and you insist on a sit . You move again when YOU are ready, not when the dog gets twitchy . Take control . The dog isn't to sniff and drag you from place to place to mark . The dog goes with you on your walk , not the other way around . Many quick sessions , building on success , eventually becoming longer without reverting to old pulling habits . Show your approval when he does right. Start each walk with a refresher session to remind him what is expected from him and then be consistent .
I will add that new rules apply in the house as well - nothing wrong with a little more structure - let him earn his "freedom" . So while you are preparing meals the dog does not need to rumble around the house and get in to mischief , do as he pleases . Have him on a scatter mat , relaxed , but on the mat . He gets up, you put him right back . He'll look to you with more respect .
Last edited by carmspack; 10-28-2012 at 11:11 PM.