Pans will work remarkably well in sunflowers, and you will definitely appreciate the 30 ft swath you will be taking. One of the best ways that pans work is to cut the field at a slight angle, 50 or 60 degrees, or however steep that you can take going over the ridges. One guy I know put used ball bearings on the tips of his pans so when a stalk hit the tip directly, it would roll off to either side instead of being pushed over. Good luck Kin