Since I do a lot of pattern grading for my designs, I thought would do a quick visual tutorial of why you don't want to use adobe to grade your patterns. I grade using the standard protocol for grading along the Cardinal points. When you're dealing with a large size run like Hourglass Patterns 4-28, the lure is to use adobe scaling, however I don't recommend it; it's close but you can see the discrepancies in my illustration.
If you're not familiar with grading, here's the rule: 1 size=2" grade. If you have a front and back, both pattern pieces receive a portion of that 2". You divide that growth along the cardinal points; both vertical and horizontal.
My example shows a grade of 4" or 2 sizes.
You can see when I overlay in the last picture that the waist is off, as is the neckline and armhole. It's pretty darn close in the picture, but you know in reality how that affects you're original design, not to mention fit. As a seamstress, you know, that fitting begins with the shoulder.
I hope this helps you with your next grading project.
