I like to time saver ..... so I use Velium and then I use my sewing machine to make the lines. I take the thread out of my machine and just sew along the lines of the pattern. Then when I am done I copy the numbers to each section of the PP.
By doing it with the sewing machine you just need to fold the paper on the line(you don't need to use that hard peice of paper to fold with) and the little holes make it easier to tear it apart.