I usually tie half-Windsor knots for all my ties but with a skinny tie, I am having difficulty making the knot cover itself (if that makes any sense). You know when you wrap the tie around itself then pull it through the loop? Well since it's skinny, what ends up happening is the visible part starts sliding down. Any amount of tightening does not really help. I am thinking this is because I am choosing the wrong type of knot. Any suggestions?