Next step is to glue a 1/4" balsa stick along the top edge of the fuz sides, running from front to aft. I found out that the 15 peices of 1/4"x36" balsa sticks included in this kit had a weight of 4-11 grams a piece (0,14-0,39 oz). I had a few extra laying around and have now measured and chosed sticks that has a weight of 4-5 grams (0,14-0,17oz) on this build. I love that digital scale..