It's a lot more fun and more stable if you statically balance it with small aluminum screws screwed in from the bottom of the ring diametrically opposite to the LEDs, dynamically balance it by twisting the props (small rotors?) to even the lift between them amd especially oiling all the moving parts on the motor gears and inside the body hub. Make sure the ring is not out of round and take care not to get oil on the internal hub wiper blades! Fly in manual turbo mode for exciting indoor fun, thinking at least 3/4 room lengths ahead of it and considering the precession rotation control-input correction. Write funny LED messages with or without weird symbols for more fun.