Now is a good time to install the fuselage bottom.

Begin by cutting back the front at about a 22 degree angle. A little less is ok, a little more is not.

This might seem a little tricky, but just set it flat so the front end is barely hanging over the table and sand with a large flat block.

Now install the belly with polyurethane glue. Use masking tape and T pins to pull everything tight. The sides do not line up perfectly with the fuselage edge at this point, they are about 1/64" narrower all the way down. This will provide a little bit of a ledge, and after it's dry, you'll sand it to a nice transitional curve. Take your time, do it right and straight. Take great care not to pull or twist the fuse out of square when installing this piece.

While you're at it, go ahead and make the end caps. just lay a piece of 1/8" balsa cross grain and using a sharpie, transfer the outline. Cut it larger and leave it that way, and glue in place with polyurethane glue. pin it, tape it, let it dry fully.