I have all my panels on my 71 Chevelle, new panels (doors, fenders, hood and 1/4 panels) are e-coated, old panels (roof, jams and rockers) are epoxy coated. All body work has been completed, I am ready to spray Claussen All-in-one for the filler to start blocking. Should I remove all the panels to edge with primer or spray the Claussen on the panels mounted in proper location?