Rudy,
I find that my Etude also has a slight misalignment between the left and right stabs, the left stab has around .5 deg pos incidence and I'm wondering how you were able to correct it without some major surgery since the carbon fiber sockets through the fuselage and in the horizontal stabs are almost cast in concrete. I certainly wish that the horizontal stab incidence was adjustable. Any recommendation for zeroing out the error would be appreciated.