This Tick Stick should be better than standard version due to the addition of the pin, which
allows positive placement. A knife line, rather than the traditional
pencil line, along the side of the tick stick would also improve accuracy.
For general usage see http://blog.woodworking-magazine.com/blog/New+Video+Fit+Doors+With+Ticking+Sticks.aspx.
Pin should probably only protrude 0.5 - 1.0mm, so that it can be fully inserted into the template piece.