I am finally getting around to applying filler to the door.

Throughout the entire project I have used SuperFil from Poly Fiber. It works great as long as you mix it properly. I think people that have problems with soft spots are just to lazy to mix it thoroughly, this includes me! So I rigged up this little mixing apparatus and I whip the SuperFil until it is uniform in color and is as soft as icing from a cake. I have yet to have soft spots or any other problems using SuperFil when mixing it in this fashion.