In the 21st century, after every change in the pattern of clothing, sewing a fitting sample is already archaism. Computer technologies are added to the case, allowing to carry out a virtual fitting of a pattern in a digital format in a matter of minutes.
In the process of developing a piece, I constantly check the future result in CLO3D: fit, line conjugation, general appearance of the product. After such a fitting, you can immediately see: here you need to add the length, here you need to increase the armhole, but here you don't need to add anything and you can immediately send the template to the customer, along with the result of the virtual fitting.
This is the advantage of virtual fitting - speed, quality, time saving (printing and sewing), and hence money.
As my experience shows, after virtual fitting 90% of the patterns go straight to gradation.