I can only speak from my personal experience. I got a UltraStick .40 for Christmas. I have yet to fly it but the quality of it is as good as my Goldberg Tiger 2. In fact, there are things on the US40 I like better. I did follow some suggestions from posts on this forum and others when putting it together but everything was straight and true. I guess the test will be when the weather breaks up here in the cold tundra of Michigan.