Thank you! That's a great suggestion. I did it yesterday evening and this morning. With all of these different exercises I've been doing, including this one now, I really noticed a big progression. Most of the times I just have to say "Sit" once, although I do need to tighten the leash after it for him to get his attention to me.
He does however sit like wants to sit, being it next to me, or a few steps behind or with a 45 degree angle from me (with his butt facing West from my position). Can I simply just place him in the right position with my hand, and then mark. Or do I need to take him out of the sit position and lure him next to me, ask to sit again, until he sits on the right spot, next to my left leg.
It can also take me minutes to simply get off my driveway. I won't walk if he keeps pulling, so I walk back. He is hardheaded though..
I have a question about that. As I am practicing "Sit" a lot more and also correcting bad behavior (like pulling, walking in front of me, focussing on dogs, etc), he seems to be getting annoyed sometimes and out of nowhere starts running away from me (still on leash), more than he used to do. Anybody familiar with this behavior? Can it be he is not understanding why I am correcting and is simply not happy with it?