Does anyone have any hints about checking the alignment of the horizontal stabilizer prior to final glueing? I measure from the wing tips to the tips of stabilizer to ensure this distance is equal on both sides of the fuselage. This centers the stab on the rear of the fuselage. I then try to compare an imaginary line going through the length wing with one going through the length of the stabilizer to make sure they are parallel when viewed form the front. This latter process is so subjective, that when reevaluated at a later time, I wonder what the *&%$^& I was thinking, and the tip of the stabilizer either droops or is elevated compared to the wing tips. The imaginary lines, which initially appeared to be parallel, are really not. Is there a tool ,or some technique, which would remove the subjectivity of this process?