I ran the Kevlar through the screw eye and tied a loop a little shorter than the upper body tube.
Then I glued the upper body tube on.
And then I thought of an advantage or two of doing this after installing the motor mount, like for instance this way I couldn’t see or access the front of the motor mount. Well, no biggie.
I glued in the motor mount, following the instructions (to which I added spreading epoxy just inside the tube after inserting the motor mount halfway, and making an epoxy fillet around the rear centering ring after letting the epoxy on the front ring cure with the tube upright.) Note, by the way, the dowel I used to spread the epoxy: I finally got smart and instead of just marking it at 6″ and then getting it mixed up with all the previous marks I’ve put on it, I put a piece of blue tape there.
I tried using sandpaper wrapped around a BT-60 tube (strengthened with couplers) to put a radius on the root edge of the inner fins, but I found it worked better to use an expended E motor casing. Not sure why, maybe the pressure tends to flatten the sandpaper out, but the smaller radius worked better.