I was wondering if anyone has had any problems or noticed how much the horizontal stab moves on the 180Hp PA-18? I have 3 180Hp New Experimental Supercubs here and at a high angle of attack and low airspeed, It is frightening to watch the tail! Each planes tail is an exact copy of the Piper design and built very well. My 150Hp Pa-12 and a friends 150hp Pa-18 move also but not like the big motor/prop combo. Has there ever been an accident due to tail failure on a 18?