Ok, I got the new main gear/shaft, center hub, and retaining pin replaced. Nothing else changed. Now when I try to fly it, it just spins in circles. Do I have something to tight to make the tail spin like this? The tail rotor is spinning but with left tx stick all the way to the right, I get no response. I did nothing to the 4 n 1 settings. Not sure where to go from here. Thanks in advance.