I wanted to ask you something about left hand posture. This might seem as a stupid question but I'm a little bit confused.
When I started playing guitar I began with classic guitar. The thumb (left hand) never went over the neck, it was somewhere around the middle.
I noticed that every good player holds its thumb over the neck as much as possible.Should I try do the same? I hope you understand my dilemma I ask this because it seem to be easier to play this way when standing up.