In writing a recent review I wrote about working with difficult fabric and marking the darts. I drafted the pattern using PMB thus the pattern was printed on heavy printer paper, not tissue. Instead of then tracing this pattern, I used as it. This can create a problem in using a tracing wheel and marking paper. Especially when your material is rather fine and slippery.
Today I had one of those UREKA! moments and I realized that I should cut out the darts on the printed pattern and then line the pattern up on the fabric and trace the outline of the dart right onto the fabric using a chalk tracing tool. This worked beautifully.
Using a tracing wheel with printer paper makes penetration through the paper and fabric somewhat difficult. I think if you pressed to hard you could harm the fabric. This way you don't have to press as hard as you are tracing the outline of the dart right onto fabric.