I have only covered one and a half airplanes, using ECONOKOTE! It's very easy - as long as you keep the covering tight everywhere, and then put the iron over, it will become tight as a drum (well.. tell you what, I did mess around with getting different pitches out of the bays between the ribs of the wing ) It's even easier when you have someone pulling the covering down on both sides of the wing, then you are free to use the iron and heat cloth. The best way to avoid caring too much about wrinkles and all is to start building the plane with a "I want to fly, not detail and stare" attitude from the start. That way, in the end wrinkles will just be another thing you can ignore, as long as it doesn't get in the way of performance. Because if you spend too much time detailing and stuff, and it's your first plane, and you crash, all that small work will go to waste and you will be heartbroken. []