Estes Super Orbital Transport Build, Kit #7314, Part 12, Glider Nozzle Shroud Gluing

I don't put glue on area marked TAB - 

TIP: Instead I place the glue inside the other straight edge. shown by the shaded area in the left side picture.

If just a skin of glue is spread out to the flat edge you shouldn't find any glue squeezed outside the finished shroud.

Have two clean dowels ready.

Set and align the tab. Place the shroud over the larger dowel. Press and roll the second dowel over the tab area.

Check the roundness of the nozzle and use the dowels to shape if needed.

A narrow line of glue is set along the inside of the 20/50 ring. 

Center and lightly press onto the nozzle shroud.