Well I am back to say, I believe the magnet works... I have one about the size of 5 quarters stacked. It said it could pull 20 pounds... I ordered it from Grainger. Since the install I have not waited like I had to in the past. Mind you, I am always looking for the coils when pulling slowly to a intersection. I will even adjust my scoot if I had to make a quikers stop... But for the cost, It has been worth it to me...