This is a huge milestone for flying helis, hovering inverted. Once you get upright hovering orientations, the next step is to start all over and learn them while inverted. As hard as it may seem, this is still considered part of the “basics”. In this video, I discuss and demonstrate the drill I used to learn the first part of hovering up side down, tail in. You have to also learn where the inverted hover point is on the collective, and this drill does both. Your mileage may vary, but this is what worked for me.