So you lay masking tape on the foil at the line of the next panle then cut along the tape line removing the tape and the excess foil?
Land this does not cut the foil under the foil you are cutting? I will be experimenting on a homer bucket with the aluminum duck tape then a few pieces of the aero foil. I'm sure there is a learning curve. Fortunately this plane I am working on only has minimum tape applied, cowl, gear doors, fairings and the belly.
TB