Joe, Body work is a very complex art form. I, being artistically challenged, have struggled to learn the art. I have wasted more paint then anyone I know. It takes a lot of "understanding". What I meant when I wrote that you have to "understand" filler is you must understand it's limitations. One major limitation is air mixed into it when you stir it. If there is one tiny air bubble there will eventually be a paint bubble. This is the reason that you try to keep the layer as thin as possible. You can imagine how much easier it would be to have an air bubble in a 1/4 inch layer than there would be in a few millimeter layer. Jim
