If clipping, trimming, grading, notching seam allowances and corners further mystifies you – be sure to watch this FULL video about it all. I’ve done my best to make sense of this ‘engineering’ with fabric.
One thing I’ll add is that if you are notching a very lightweight, sheer fabric, and/or you are notching a very heavy fabric, you should stagger the notching, doing just 1 layer of the seam allowance, then move to the other layer just a bit next door, then back to the first seam allowance….this will accomplish the same thing, but will distribute the notching to yield a more uniform depth to the seam allowance.
Have these tasks challenged you in the past? Did this help? Do you have any tricks you want to share? Please comment below.