Today I worked on the spinner by adding a supporting ring for the forward bulkhead. The instructions provide 3 ways of doing this and I am doing a combo of two: a fiberglass ring with bondo to finish the installation. My fiberglass ring is very close to the required inside diameter and I will use some bondo to complete the installation as per Vans aircraft suggestion.
Also not in the picture, I have attached the guiding side plate of the cowling as shown yesterday.
Marking the location of the desired ring
some fiberglass strips ready
After several passes , the thickness is just shy of 3/8"