Drawing 41 shows a specific size the the C-660 Side Skirt. It also shows the front part notched out (more narrow at the front than the back) the width is 4 1/16 inch. However, I am in the process of drilling the side panel holes in the frame and notice that the skirt does not cover the roller track in the front and go down past the fuselage side skin. In the back, where it is not notched it covers the fuselage side skin about 1/2" the way the drawing shows. Is the Roller Track supposed to be exposed in the front? The pictures sure do not show this. Am I missing something here. What is the purpose of the narrower front? Do I need to make new panels? Thanks for the help.