The first thing I noticed in the pics on the Troybuit models site is how the elevator servos are mounted, sideways to the hinge line. When mounted on the shock absorbing grommets the servos can rock back & forth as the grommets compress. Built in play & elevator flutter. I found this out years ago on a 40 powered model, don't ask me how! [&o]

Looking at the quality of the model posted on the website would you be trusting these guys? - John.