Got to second this. I just did my first skin and I am WELL PLEASED with the way mine came out. I followed the videos and had not problems at all. I did have to redo a couple of mistakes as I went but it turned out excellent for a first attempt.

Look at how straight this seam is. I promise, this is my first one and I can't imaging me ever getting one much straighter than that. And it's drum tight. No sweat man, just follow the instructions.