I'm not talking about a posted bad line by error of the book either.
You see at least one comment a day (if not dozens) about someone saying this site gives bad lines and/or stale lines etc, etc.
How can there be a bad line going both ways from any book. First off, everyone should line shop, if your not, your an idiot. However, how can you have a bad line go both ways? Even slow lines are better if it doesn't move against the side you are taking. I just don't get it, maybe I'm not seeing it or something but how can you have a bad line go both ways?