I have this door, that required, that the bottom of the door be repaired. When I put the new outer piece on, it developed a dip about an 1/8" deep, and approximately 4 inches in diameter. I used a puller to pull it level, the variety with the copper studs. When, I do pull it as soon as the pressure is released the panel goes back to the wrong position. What is the proper method for keeping it flat? I can not get to the back side of the panel. The new panel is the full width of the door and 11" tall. I can put enough pressure on the panel to move it past level, but is that the correct method, as it will then be bowed up. I do not want to that much filling with filler.
