Good morning Tom. This is what I found:

Looking at my rig I now remember having an issue with the dowel alignment. You can see in the top center of my Tee a vacant hole. That was the original hole I used with a single line going to the ceiling. Working with this rig I decided to go with a 2 line loop so I drilled the horizontal hole. I also add a spreader bar to the loop. I like this setup better. In the first picture you can see the plane is balanced wing tip to wing tip. The dowel is still slightly out of alignment. This has to do with how the plane is hanging in the aircraft loops. I will show this better in my next post. The second picture shows the plane balanced in the longitudinal axis and gives a good view of my rig. The last picture shows how I wrap the loops on the dowel. This is more balanced than as pictured in post 12. Since I have my plumb bob centered on the Tee I don't pay much attention to the dowel alignment.