RE: Installing icing on the cake
I quit using the wood pecker for putting film over film. The wood pecker tears the holes into the film, and I have found that they are to big of holes and show through the film. I mark off the trim film area and use a sewing needle to poke the holes into the underlying film. It takes allot longer but will give you much better results. After spending hundreds of hours on an airframe the extra time it takes to use a sewing needle is worth it. I punch the holes about every 1/16th to 1/8th inches apart.
I have had many complements on my coverings.