I said something in the wing is flexing, and I have no movement in the other 2 biplanes at all under the same stress. My instructor/friend says like you, that it will be fine, so im going to get the little servo's, finish the plane, and move on with my power aerobatic training that he's been buggin me to do with him for about 4 years now. He just came over and checked out the wings, and said it will be fine. He said thet were purposly keeping the wing loading down with the Saito 56, so no problem at all... I feel better already, and you win. lol Im surprized you found fault in the Skybolt at all. I traded my Kyosho Nexus heli for this one, and aside from some builder error that I had to redo, it's been a wonderful plane, but the Saito 80 I put on it doesn't exactly make it a hot rod either. I love the way the Pitts looks, and I know it will be economical to fly with the little 56 on there, and if yours has passed the in flight stress testing, then im sure that I will be very happy with it. I will use threaded rods and clevises everywhere on it, and that will sure be a nice upgrade... and I really appreciate your taking the time to straighten me out on this. My friend/instructor (Greg) says that I worry way too much, and that I fly fine, land great, and will learn the power aerobatics quickly with the little Pitts. He also said that the reason the plane was so cheap, is because they saved alot of money by cutting corners, just not so much in the plane itself. He said like you, that the plane itself is great ! Mine came from a different dist, and has full wheel pants and solid interplane struts without the openings by the way, but it's the same plane...