Well, the walls are up. It took a full day, but they are up, and I am feeling good about the progress and the quality. Next step, the most intimidating step so far, float the compression ring and install the rafters. In order to “float” the compression ring, we had to make some calculations for the height of the compression ring. Once done, we used several stories of scaffolding and built a stand for the compression ring to rest. Then we used a rope to hoist the extremely heavy ring to the top of the scaffolding. Once the ring was in place, we started attaching the rafters one at a time in opposing locations to compress the ring in opposite directions.