At a Sequence System office, we employ accurate drop piece adjusting on a specialized chiropractic table, in addition to occasional 'instrument' assisted adjustments, performed with a precise chiropractic adjusting instrument. Adjustments don't necessarily move a bone, but use mechanical force to unlock vertebrae, reducing nerve irritation. Drop piece adjustment cushions the force of an adjustment and facilitates the unlocking action. The drop adjusting we do here is called a 'toggle recoil' and is developed out of the adjusting methods perfected by the late Dr. Walter V. Pierce of Dravosburg, PA. It is an extremely efficient and effective adjusting method. and is used extensively in the 'Sequence System'.