MPC Lambda Payloader Build, Part 13, Stine Shock Lock

Here's how the instructions show the lacing of the round elastic shock cord. 

They suggest gluing the mount down 1" from the top of the tube.

The next illustration shows the mount in place - but not recessed a full inch.

Here's the kit enclosed shock cord mount. It's 110 lb. cardstock with three holes punched in line down the center.

I pre-curl the cardstock to better fit the inside of the body tube.

The round elastic is laced through the mount

On the right, the back gets a thin coat of wood glue.

TIP: Set the elastic line beside the other exposed line to keep the mount as flat as possible.

The glued mount is pressed against the inside wall with a dowel.

Lightly pull on the elastic to pick up any slack and to tighten the laced line.