To hull a strawberry, the goal is to take as little of the luscious flesh away as possible. If you cut straight across the top of the berry, you lose the shoulders, which ideally are farm-stand red and juicy and not Costco-berry white. Cut into the berry directly around the stem, on an angle. You will take out both the stem and hull at once.
These strawberries, by the way, were picked by a whole bunch of Aboods at Pond Hill Farm in Harbor Springs.