I had to sand off most of the orange layer on the centering rings of the 24mm mount for a slip fit into the 35mm main airframe tube.
On the left is the before -
On the right is after fitting and sanding.
The mount is slid into a ring of glue inside the tube. Leave the mount extending 1/4" out the back of the tube.
To fillet the rear ring,
Apply a small drop to the upper side of a Q-tip. Carefully set the glue drop into the joint. Direct the glue around the joint, picking up excess glue as you go.
Repeat the steps until you have a glue fill all the way around the centering ring / body tube joint.
The assembled model got an overall white gloss coat.
Easy, one color spray coats.
I was concerned about the "round rod" molded into the leading edge joint of the fins.
How can you fit the sticker into the root edge with that molded rod in the way?
This led to some dry-fit experiments.
I lightly creased the sticker to press it into the root edge. DON'T make this a sharp crease yet - You might get a crack in the ink.
DO NOT do what I did here - This was a try at a work around.
After lining up the fin I pressed a (soft) eraser into the top of the "rod" underneath the sticker.
This raised and marked the end of the rod.
Maybe the sticker will fit better if a small notch is cut.
This didn't work! The sticker was a bit stiff and wouldn't conform to the tight areas around the rod.
The best fit solution I could find will be shown in the next post.