I am new to the hobby and I have only had my Nexstar for 2 months. Mine has the same problem!! Got to reading this post and others last night. Today I put 1 set of washers behind the motor mount and took out some of the right thrust. Just a little left but not as much. What a difference!!! I fell in love with this plane today! Takes off straight as an arrow and handles better in the air!! Just thought i would let others know!! Happy landings!!! Gary