Building a regular 2.6" cardboard Madcow DX3. Was following along the instructions, but there's nothing there about how you attach the nose cone. The DX3 has a payload section, the shock cord attaches to the bulkhead at the base of it. Nose cone in the top. But what do you do with the nosecone? Just confused. This is my first rocket with a separate payload-section. Curious how to proceed. I haven't glued in the coupler yet. I'll wait for input. Suggestions appreciated.