I AM AN INSTRUCTOR I HAVE TAUGHT STUDENTS ON THE NEXSTAR. WE DIDN'T HAVE ANY YAW PROBLEMS. I BET IF YOU TAKE SOME TIME YOU WILL DISCOVER SOMETHING ISN'T STRAIGHT. AFTER YOUR FIRST FLIGHT WHEN TRIMS ARE ALL SET YOU NEED TO CENTER THE NOSE WHEEL. OR MAKE SURE YOUR MAINS ARE STRAIGHT WITH JUST A DAAD BIT OF CAMBER TO HELP SLOW YOU DOWN. GOOD LUCK FLYIN IS GREAT IF YOU EVER TEACH PUSH YOUR STUDENTS INTO THE SIG LT-40 KADET