|I'm assuming that most people are like me and have never actually transferred pattern markings to fabric. If you have, then this is probably something you already know.
Pin tucks, pleats and any other kind of tucks used to be my nemesis. I hated them. Invariably, in a set of ten tucks, no matter how hard I tried, one would turn out crooked. I had an epiphany a year ago, though. I was transferring embroidery designs to the dress fronts of Simplicity 2629 with an iron-on transfer pencil and realized that I could transfer the pattern markings for the knife pleating at the shoulders the same way. It works great! Not only are the pin tucks perfectly straight, but they're spaced just right, too.
You even have a line to sew along, which simplifies things considerably. If you're using sheer or semi-sheer fabric, however, you need to do a graphite transfer or use transfer sheets because the heat transfer marker and pencil don't wash out. I'd recommend testing anything on scrap before you do it for real.