Airpulse PK2 Positioning Considerations
If you are using a chair that has tilt/recline capabilities when going into recline there is a natural tendency to slide forward. This sliding may have the ischial position changed to a spot forward of the normal position on the cushion. It is important to maintain the correct position on the APK2 cushion for optimal performance so it may be necessary to have someone reposition you if in fact you do slide forward.
Another consideration is that different cushions will have different heights and a change in cushion may require an adjustment of the foot rests. For example if the new cushion is taller than the previous cushion the foot rests may have to be raised. The same may be true for the arm rests height.