Whether upright or inverted, the ailerons are not reversed. Upright/nose in - stick to the low blade. Inverted/nose in - stick to the low blade. Elevator get reversed. Upright/tail in - forward to move away. Inverted/nose in - forward to move away. T/R upright - fly the end farthest from you. T/R inverted - fly the end nearest to you. Collective inverted - just remember to pull down to go up! The main thing is lots of practice. I can hover inverted fairly well on the SIM, but not ready to try the real thing quite yet.