Is your rigging off on your struts, causing the wings to twist which keeps your ailerons unbalanced? Not sure why they are showing a constant left stick input. Nice plane and good job!
Question, We're you making your turns only using the rudder? I did not see the wings bank. If so, you should be turning with your aileron and only using the rudder to keep a coordinated turn. That is to keep your turn and bank ball centered. Thanks for the video, your plane looks nice.