First of all, I hope the pictures are attached to this post. It is my first try at it.
I have seen the experts tie rat lines and I am envious of their skill.
I have some experience but not much and became frustrated with the poor quality
I could achieve. I dreaded tying ratlines and almost gave up.
This might not be new but I finally stumbled on a simple idea and I am now happy with my work
[although my speed remains poor].
It is simply two pieces of square stock the size of the ratline spacing clamped in place
to use as a guide. I cemented a strip of fine grit sandpaper to one side of each square.
In clamping the squares together with the sand paper on the inside the lines are held
firm and I did not have to worry about the "hour glass effect" to the main lines. I also found
I could easily tighten the knots to secure them in place.
If you are a novice like me and have issues with your rat lines this may work for you like it did for me.