I put a t pin up on top of the verticle stab and connected a string to it. Using the string and lots of tape, I was able to get the alignment I wanted both vertically and horizontally and with the canopy base, wing saddle etc. Once satisfied with the fit, I glued the other side on. It is within a 32nd difference from side to side. Like I said this took me a long time to do and I was VERY frustrated at this point. Then out of the blue, it just fit. Wow what a test on my patience.
After the glue set up on the second half, I installed the hinge covers and the spar covers.