I didn't have any problems finding the holes for the wing struts. They were right where the directions said they would be or should I say close to where the measurement said they would be. You can actually feel the holes in the covering. I'm waiting for my muffler to come in and then the plane is done. I also used Vinyl for the decals. The decals supplied are junk. What a difference. I used navy blue which looks awesome on the creamy white. Hopefully the muffler will be here and I can fly her this weekend. John