This is my favorite photo. There are 6 tubes that run from the chassis to the cowl tube. They all come in at different angles and intersect the cowl tube at different points. CAD lined everything up perfectly.
The two outside tubes appear to not quite line up, but that is a photo problem. The cowl tube is not straight--it arcs through all 6 of these tubes. When we placed the cowl tube on it was perfect.