In the latest Fine Scale Modeler, March 2015, an article by Ricardo Dacoba, titled "A Ju 88 in FOREIGN DRESS", page 32,step 28, shows painting lines for the wing walks in red using a piece of masking tape. How were the perforations made on the masking tape? It appears they were made using some sort of device - pouncing wheel, plain point tracing wheel? This couldn't have been done freehand - they are too precise. HELP! I build Luftwaffe aircraft and don't want to use decals, but would rather use this type of approach.