The sterling kit sucked .Lanier put out garbage.I built a sig kougar .no it wasn't the worst kit by any means but the builder that would be me built it as the worst build ever.hey nobody told me about incidence.so I sanded the heck out the saddle.and I was fairly new soooòooooo I didn't balance well.when I flew it I had tail heavy negative angle of attack.lol yes it went back to a kit big time lol