4. Trim the cloth on the cushion side of the featherstrip along the total length of the featherstrip as shown in the figure to the right.
5. Fold the cloth down over the front of the rail then use your thumb and forefinger as a guide along the front edge of the cushion to keep the tapping block at the rear edge of the featherstrip - tap the featherstrip down flush with the rail surface as shown in the figure to the left.
Never try to tap a featherstrip flush with just a hammer as it will certainly dent the rail surface behind the feather strip.