Read the instructions that comes with the covering. I know it sounds corny. But there really is a lot of good information in there. I always start at the spar and work outward. Stretch the covering as tight as you can. Tack the spar and the otside edges. i then tack the covering to the ribs. After that I stretch the covering over the tips. pulling out as many wrinkles as possible. I also shrink as much as needed to get them tight. i then use my iron to shrink each panel between the ribs and then hit the tips. I only use an iron. I do not use a heat gun. I have more control with an iron. Good luck with your new plane.

Mark Shuman