Actually the building up of diameter with masking tape or other paper concoctions is an old trick that I've put to use many times over the years. It works a lot better than you might think. I would not hesitate to use it to solve a wingtube problem. You may have to experiment a bit to find the right tape, but a slip fit with light to moderate friction will work great. Sometimes you have to play with the winding angle a bit to get close spacing from one wind to the next without overlapping. Sometimes you can do it with just one width of tape laid straight along the length of the tube.