Maintain the wheel at quarter speed or less. Use the wedge-shaped end of your wooden trimming tool on the outer bottom of the pot, removing the clay that your fingers couldn't get under. Stop the wheel to cut through the trimmings, then gently rotate while lifting the trimmings away from the pot.
Do a final trim, producing a slight undercut at the bottom sixteenth to eighth of an inch. This undercut will give the pot a visual lift and finished look.
