Good description of how they work BIA.The number of people who have trouble with electric brakes never ceases to amaze me.However if every part is in good condition ,fitted correctly ,and adjusted correctly there should not be a problem.! Using non genuine brake shoes,fitting other Alko parts such as springs .magnet etc.Getting the 12 inch backing plates blasted and powder coated for $40.00.Still working out miles cheaper per side than full replacement non genuine backing plates complete.Living near the coast certainly increases the corrosion underneath on ,JTech suspension ,springs ,etc