...wow! - perfect day for hovering - almost zero wind so i was able to hold it steadier than in the video...i tried feeding some ailerons in a few times and i can see where it will really help dampen the wing rocking...one of my tail touches was pretty vertical and a little too solid - close to a tail slam - i had some covering to reshrink on the rudder when i got home but nothing broke! - the Knife really is an impressive ARF...