Estes Python 4 Build, Part 4, Plastic Parts Prep

The tail cone was cut from the adapter section.
The raised fin slots are cut off like the previous Paveway build and the current Estes V2 model.

A possible problem -
The fin slots are wider than the 3/32" thick fins.

The smaller end of the tail cone was rounded out using 220 grit around the supplied yellow spacer tube.

Jumping ahead:
I installed the clay weight in the nose cone.
Instead of rolling the clay into a snake,
It's easier to roll it into small balls.

With the clay rolled into balls it settles more evenly in the tip of the nose cone. You're not chasing and tamping the clay "snake" around the inside of the nose cone.