Mate I think the 6S power might be making it fly better? You know because the higher head speeds makes them more stable? Just a hunch, I could be wrong? Awesome flight as always, I'm amazed how good you've got during recent months!
Typically when running 6s you have a lower kv motor and its geared for similar head speed that you would run otherwise. Target head speed should be based on the airframe and rotors chosen and what ever flight mode the user has setup then you choose a motor and gearing to reach that target. Higher head speed isn't inherent to being 6s. Its just that newer 6s motors tend to have a higher max watt rating than older 3s motors. Basically its just a bigger more powerful motor. There could be made larger more powerful motors that are 3s if there was demand. That happens plenty for other markets where you get super high KV but low voltage motors.
