I have a DP extra 330 and have a Zenoah G-45 mounted to it (helps the plane balance out!). I have not yet flown or even started up the G-45. I used Robart hinge points for the ailerons and rudder, but had to stick with CA hinges for the elevators. I ditched the CA hinges that came with the kit, and bought Bennet 1/4 scale CA hinges. These have the heavy plastic material in the middle of the white CA material sandwiched together. They seem to be exceptionally strong and pretty thick. Anyway, on the DP extra there was not much room to fit the robart points, as the stab tube gets in the way. This is why I went CA in that area. Im pretty sure it will hold, but will keep my eye open for problems.