Static balance, square T.E., seal gaps, aileron horn near outboard end, hinge a little behind L.E. so that L.E. projects into airstream (tubulates)- pretty much the things recom. in this thread that I've done. Never 'taped' an ail. but have seen pics of it. Of course, the ail. servo can't be at this end..... 'Model Aircraft Aerodynamics' is a good book if available.