First, I made a pattern and then placed the rigging components on the pattern. The bow is at 12 and the downhaul is at 6. At about 1:30 is one side of the boom vang loop on the inside circle. On the outside circle is one of the halyard blocks. At 10:30 is the other side of the boom vang loop and the other halyard block.
I marked the locations and moved the components for drilling.
Even though I marked both sides of the components it's I good idea to drill the first hole from the pattern and then drill the second hole using the component as a guide.
Alll the holes have been drilled and I'm ready to mount everything.
The components are mounted around the mast tube. A 15 minute job that took me a few days to complete!