Rik, If you rule out the 3 most common reasons for failure, (gripping too tightly, thumbs over handles and the most common, walking too fast) then I would guess that your hangers may have been cut too short. They should extend out far enough to fall outside the plane of your own magnetic field. Try cutting them at the base of the hanger just before where it begins the twist to form the hook. Let me know if you try this again and if it works next time. Brenda