The best thing is to fly left to right or right to left, keeping the turns nice and smooth so that all you really have to do is point the transmitter antenna in the direction of flight and move the stick accordingly. Is this a radio with the turn channel on the left stick or right stick (aileron = turn channel), or in your case, the rudder. Four channel Mode 2 has aileron and elevator on the right, rudder and throttle on the left.