I think I'll have to hang it up and balance it with a glue gun. The trimmer cannot compensate. So, first you need a round bubble level. Since there are 4 rotors, is there a torque problem? Give your kids the remote control, try Butterfly_ufo app on play store. I modified my Fire Tablet to use Google Apps. I used this as a remote camera to watch boaters and turn the video on and off. Quality photography for the money. View without internet connection. Sort of like lamp holders. So we're working on the flight. In the meantime, I'd like to find two identical Wi-Fi cameras and an application that allows you to share the screen with separate recording of both. I still have a lot of work to do in the future as I want to protect the drone from the water and make it take off and return to the glide board controlled by the assist drone as a carrier. I'm such a sailor freak. PROBLEM I keep getting the authentication error now. You can see it can't connect.