Welcome! I hope everything goes well w/ the tooth.
See this makes so much sense - just when you think you do things pretty OK....it's comman sense things we might ignor.At this age they are starting to exert their independence a bit more. Inside, he feels safe. Chances are that when you call him in the house it is often because he has to do something; something that he doesn't necessarily like to do: go to crate, get nails trimmed, etc. Outside, he is probably still a little uncertain so he sticks closer to you. Realize that the time will come where he feels confident enough outside to not heed your call. You are right to teach a solid recall now.
The trick is to always be able to enforce the recall command. Every time you call him and he doesn't come and you can't make him, it confirms in his minds that he really does not have to listen to you. I have a friend who has the top obedience Beagles in the country. Her puppies are literally NEVER off leash for the first 11 months of their lives. Even in the yard, they will drag a long, thin 20 yard line. By having a strict program in the beginning, she ensures that she has a lifetime of prompt and accurate recalls.
No it is more that they drag the leash around the house/yard with them. When you go to call, you have to make sure that you have access to the end of the rope/line. It looks something like this:Cbrand - can you please describe her method little bit more in detail ! Or maybe you know for a book that explains that method with the leash. Is that one of the programs where puppy is attached to an owner by a leash even in the house for the first couple of months ??? I think I read somewhere that most Border Collies are trained that way the best and we all know how obedient and super smart those dogs are