|Oh wow, a classic "D'oh!!" moment -- why didn't I think of this earlier? I always fidgit trying to baste darts down so that the two sides of the dart line up neatly.
This morning it finally hit me: In the late 1960's/early 1970's (when I learned to sew), pattern companies used to print a center line inside each dart. All you had to do was fold and press along the center line; basting neatly so that the sides of the dart lined up became a piece of cake.
I don't know why they stopped doing this (how much time and ink did it save them, really?), but from now on I am going to draw a line in the center of all the darts on my pattern pieces. It should be as easy as holding the tissue up to a window, lining the two sides up, and creasing the tissue -- then drawing a line on the crease and transferring this line to the pattern markings. D'oh indeed! ;)