183AMMO, As the other fellows correctly stated, the dynamics that makes all heli remain airbourne is somewhat confusing. As you already know there is a natural tendency for the heli to yaw (turn about main rotor axis) opposite to the rotational direction of the main rotor, to counteract this, the tail, anti-torque rotor keep things in order. In the case of the mSR, viewed for the top, the main rotor rotates clockwise, therefore to heli wants to rotate counter-clockwise, to counter this the tail rotor produces thrust to the right, but then this causes the entire heli to want to drift to the left, so, now to counter this, if you look at the mSR from the rear you will notice that the main rotor shaft is angles a few degrees to the right of vertical, which biases the main rotor thrust to the left again, now that's what causes your mSR to hover cock-eyed, you might even notice that it makes turns in one direction better than the other. As in real helis, no two aircraft will fly exactly alike and that's even more so in tiny models like the mSR, due to material and manufacturing inconsistencies. Remember that the FAA regulates the quality control of real helis, unfortunately not models. There aren't a lot of adjustments you can make on the mSR other than messing with the servo-to-swashplate push rod lengths a bit and if your helis is flying well without any hovering problems (like toilet-bowling), then fooling with the rigging can make things much worst, take my advise and just enjoy it. Plus, if I may take the liberty of looking into my crystal ball; you will be outgrowing the mSR in the near future and stepping up a more advance, collective pitch machine anyway.