I am still not satisfied with my baseline sloper bodice block with the mccunn method because I want to make it completely scalable. I will test it with the measurements of different humans and expect to also be able to shrink it to fit 3d printed 1/4 scale doll models. Mccunn has a table that he uses for the dart width, and after reading through the text and trying several ways I believe the most accurate way to make a parametric pattern is to use a calculated angle (in degrees) based on the difference between bust circumference and lowbust circumference.
The process seems a bit cumbersome if I need to calculate the angle every time I use it. It is clear to me that I can create a variable in the .vit file to represent this but I was wondering if this a valid use of the measurement file.