I recieved the Vision for Christmas. Finally it is above freezing so prior to take off I update the firmware. Everything works alright until I try to take off. It dosen't seem to have enough power to take off even with stick all the way up. Out of frustration, I move the stick to the right a little bit and immediately the rpm's rise to a higher level. I then move it to the left and the rpm's rise again and it wants to rotate and lift so I throttle back all the way down and the props won't shut down. I shut the Vision down manually. Well I connect the controller to the RC software and attenpt to calibrate it. Thinking it will work having no idea if it calibrated succesfully I took it outside for another try. Same thing as before. Not enough power to take off and wont shut down. Yes, I am talking about the left stick. Thanks for any help!